HRH Duchess of Cambridge delighted the audience at this year's Sports Personality of the Year with a short live appearance on stage.

She presented the main award of the evening to cyclist Bradley Wiggins and the lifetime achievement honour to Lord Sebastian Coe at the evening to mark one of the nation's greatest ever sporting years.

sports personality
HRH Duchess of Cambridge with Sports Personality of the Year Bradley Wiggins, and David Beckham

All eyes were on the pregnant royal, who looked composed in a floor-length emerald-green dress, standing on the stage next to David Beckham while Coe made his emotional speech, followed by Bradley Wiggins' cheekier one.

The Duchess had not been seen in public since leaving the King Edward VII Hospital in London on 6 December.

duchess cambridge
The Duchess presents Bradley Wiggins with the trophy, looks in blooming spirits

The Duchess, who is pregnant with her first child, had pulled out of attending the royal premiere of 'The Hobbit' earlier in the week after suffering from acute morning sickness, but was reportedly determined to show her support for the country's athletes, as an official ambassador of Britain's Olympic and Paralympic team.

duchess cambridge
The Duchess shares a joke with David Beckham

Both Prince William and his wife were regular attendees at the 2012 Olympics earlier this year, where they were often seen cheering in delight at British cycling triumphs in the velodrome, and other Team GB victories.

Inside the Arena at the 2012 British Sports Personality Of The Year Awards...

Loading Slideshow...
  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins with David Beckham (left) and The Duchess of Cambridge during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Idris Elba performs on stage during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Members of Team GB and Paralympic GB, Victoria Pendleton (left) Jonnie Peacock and Louis Smith (right) accept the Award for winner of team of the year which went to Team GB and Paralympic GB during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Members of Team GB and Paralympic GB, Victoria Pendleton (left) and Jonnie Peacock accept the Award for winner of team of the year which went to Team GB and Paralympic GB during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Second placed Sports Personality of the Year 2012, Jessica Ennis during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins (centre) accepts his award onstage from The Duchess of Cambridge (left) during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge (left) and David Beckham during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge (left) and David Beckham during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge walks out to present Lord Sebastian Coe with the Lifetime Achievement Award during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge (left) and David Beckham during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge presents Lord Sebastian Coe with the Lifetime Achievement Award during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge (left) and Jessica Ennis with her Second placed Sports Personality of the Year 2012 award during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins gives his victory speech during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Overseas Sports Personality of the Year 2012, Usain Bolt is seen via video link on the large screen during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Lord Sebastian Coe speaks during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins kisses the trophy during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge (left) and David Beckham during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Second placed Sports Personality of the Year 2012, Jessica Ennis receives her award from the The Duchess of Cambridge (right) during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge presents Lord Sebastian Coe with the Lifetime Achievement Award during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins gives his victory speech watched by The Duchess of Cambridge during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Third placed Sports Personality of the Year 2012, Andy Murray is seen on videolink accepting his award from Lennox Lewis (left) during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    David Beckham during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins (second left) gives his victory speech watched by The Duchess of Cambridge and Second placed Sports Personality of the Year 2012, Jessica Ennis (right) during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Sir Steve Redgrave (centre left) and Steve Cram (right) embrace Lord Sebastian Coe during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    David Brailsford speaks during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Second placed Sports Personality of the Year 2012, Jessica Ennis with her award during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Second placed Sports Personality of the Year 2012, Jessica Ennis with The Duchess of Cambridge (left) during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge (left) and Jessica Ennis after the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins gives his victory speech watched by The Duchess of Cambridge during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge (left) and Jessica Ennis after the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge after the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins accepts his award onstage from The Duchess of Cambridge during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Duchess of Cambridge (right) and Jessica Ennis during the BBC Sports Personality of the Year Awards 2012 at ExCeL London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winner of Sports Personality of the Year 2012, Bradley Wiggins (centre) accepts his award onstage watched by (left to right) Gary Lineker, Sue Barker, The Duchess of Cambridge, Second placed Sports Personality of the Year 2012, Jessica Ennis and David Beckham during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Idris Elba performs on stage during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Award for winner of team of the year, Team GB and Paralympic GB, is presented by Sir Roger Bannister to Victoria Pendleton during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Fabrice Muamba (right) talks to Gary Lineker during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Members of Team GB and Paralympic GB, Victoria Pendleton (left) Jonnie Peacock and Louis Smith (right) accept the Award for winner of team of the year which went to Team GB and Paralympic GB during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Award for winner of team of the year, Team GB and Paralympic GB, is presented by Sir Roger Bannister to Victoria Pendleton during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winners of the Unsung Hero Award, Sue and Jim Houghton are presented their award by Fabrice Muamba (left) during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    The Award for winner of team of the year, Team GB and Paralympic GB, is presented by Sir Roger Bannister to Victoria Pendleton watched by Jonnie Peacock (right) during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Winners of the Unsung Hero Award, Sue and Jim Houghton with Sue Barker (right) and Fabrice Muamba during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    David Weir onstage during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Jessica Ennis on stage with Sue Barker (left) during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.

  • Sport - BBC Sports Personality of the Year Awards 2012 - ExCeL Arena

    Jessica Ennis on stage with Sue Barker (left) during the BBC Sports Personality of the Year Awards 2012 at ExCeL Arena, London.