Jessica Ennis swapped her tracksuit for something a little more glamourous as she celebrated her Olympic gold last night.

The star - the first Brit to win gold in the Heptahlon for 12 years - was treated to a well deserved pamper session in London before heading out to an "Athletics Night" party at Omega House.

jessica ennis

She ditched her Team GB kit and slipped on a dusky pink dress with a black belt and matching heels.

jessica ennis

With her hair swept back into a slick side bun, dark eyes and long lashes courtesy of P&G Salon at the Wella Studio, the athlete looked gorgeous as ever.

jessica ennis

Jessica gets glam

To be honest, we've always had a bit of a crush on Ms Ennis - tracksuit or no tracksuit. But we're chuffed to know she got some time to put her feet up and indulge.

A treat well deserved!

Loading Slideshow...
  • Celeb Style Transformations

    Cheryl Cole (Pic: WENN)

  • Celeb Style Transformations

    Nicole Richie (Pic: WENN)

  • Celeb Style Transformations

    Gwen Stefani (Pic: WENN)

  • Celeb Style Transformations

    Kerry Katona (Pic: WENN)

  • Celeb Style Transformations

    Victoria Beckham (Pic: WENN)

  • Celeb Style Transformations

    Denise Van Outen (Pic: WENN)

  • Celeb Style Transformations

    Pink (Pic: WENN)

  • Celeb Style Transformations

    Geri Haliwell (Pic: WENN)

  • Celeb Style Transformations

    Sarah Jessica Parker (Pic: WENN)

  • Celeb Style Transformations

    Sarah Harding (Pic: WENN)

  • Celeb Style Transformations

    Jessica Simpson (Pic: WENN)

  • Celeb Style Transformations

    Chantelle Houghton (Pic: WENN)

  • Celeb Style Transformations

    Kristen Stewart (Pic: WENN)

  • Celeb Style Transformations

    Peaches Geldof (Pic: WENN)

Also on HuffPost: