Rihanna has announced the title of her next single by posing topless with a dollar bill over her mouth.

The track 'Pour It Up' will be the second single from her seventh studio album 'Unapologetic', which is currently number one in the US Billboard album charts.

rihanna

The controversial Grammy Award-winning singer posted the artwork for 'Pour It Up' on her Instagram account and shocked fans who thought her Chris Brown collaboration 'Nobody's Business' could be the next cut from her album.

LISTEN: Rihanna's next single...

PROFILE: How Long Can The 'Unapologetic' Pop Star Stay Afloat?

Rihanna recently came under fire after journalists complained that they were not given enough access to her after being flown around on her 777 Tour.

The Bajan star responded to criticism by telling Radio 1: "They all want you to host a party every time you get on the plane after a show but you really only have that time to sleep until you get to the next country.... Sometimes it was a two-hour ride to the next country and that was all the sleep you would get."

"I knew I had seven countries and seven shows and I had to save my voice," she told the station. "I didn't go crazy. I didn't party too hard."

The 777 tour took the singer and her guests to seven cities in seven days. Each night, Rihanna would perform an almost entirely consistent set at a somewhat intimate show.

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  • MTV Video Music Awards - Las Vegas - Arrivals

    Rihanna arrives for the MTV Video Music Awards at Palms Casino Resort, Las Vegas.

  • MTV's TRL - Total Request Live-show - Leicester Square

    Rihanna.

  • MTV Europe Music Awards 2006 - Press Room

    AP OUT Rihanna arrives for the MTV Europe Music Awards in Copenhagen, Denmark.

  • 2006 MOBO Awards

    Rihanna attends the 2006 MOBO Awards at London's Royal Albert Hall.Picture: UK Press

  • Nobel Peace Prize Press Conference at the Plaza Hotel in Oslo

    Rihanna attends a Nobel Peace Prize Press Conference at the Plaza Hotel in Oslo.Picture: UK Press

  • The MOBO Awards Launch Party

    Rihanna attends The MOBO Awards Launch Party in London.Picture: UK Press

  • World Music Awards 2007 Arrivals - Monte Carlo

    Rihanna arrives for the World Music Awards 2007 at the Sporting Club Casino in Monte Carlo, France.

  • MTV Video Music Awards 2008 - Los Angeles

    Rihanna arrives for the MTV Video Music Awards 2008, at Paramount Studios, Hollywood, Los Angeles, California.

  • MTV Movie Awards 2007

    Rihanna arrives for the 2007 MTV Movie awards at the Gibson Amphitheatre, Universal City, Los Angeles.

  • American Music Awards - Los Angeles

    Rihanna arrives at the American Music Awards 2007 at the Nokia Theatre in Los Angeles.

  • American Music Awards - Los Angeles

    Rihanna arrives at the American Music Awards 2007 at the Nokia Theatre in Los Angeles.

  • Inglourious Basterds Premiere - London

    Rihanna arrives at the premiere of 'inglourious Basterds' at the Odeon Cinema in Leicester Square, London

  • Rihanna at Westfield

    Rihanna during a photocall to promote her UK arena tour, at the Westfield Shopping Centre, London.

  • Rihanna visits Capital FM - London

    Rihanna visits Kat Shoob at Capital FM in London.

  • Rihanna - Las Vegas

    Rihanna hosts a New Years Eve Party at PURE Nightclub at Caesars Palace Hotel and Casino, Las Vegas

  • Rihanna switches on Westfield Shopping Centre lights - London

    Rihanna before she turns on the Christmas lights at the Westfield shopping centre in London.

  • MTV Europe Music Awards 2010 - Arrivals - Madrid

    Rihanna arriving for the 2010 MTV Europe Music Awards, at the Caja Magica, Manzanares Park, Madrid, Spain.

  • Brit Awards 2011 - Arrivals - London

    Rihanna arriving for the 2011 Brit Awards at the O2 Arena, London.

  • 2011 Billboard Music Awards - Las Vegas

    Rihanna during the 2011 Billboard Awards held at the MGM Grand Garden Arena, Las Vegas

  • Capital Radio Summertime Ball - London

    Rihanna backstage at the Capital FM Studios for the Capital FM Summertime Ball 2010 held at wembley stadium in London

  • Pussycat Dolls in concert - Cardiff

    Rihanna performs at the Cardiff International Arena on the same bill as the Pussycat Dolls.

  • Brit Awards 2011 - Arrivals - London

    Rihanna arriving for the 2011 Brit Awards at the O2 Arena, London.

  • V Festival 2011 - Chelmsford

    EDITORIAL USE ONLY : Rihanna performing on the V Stage, during the V Festival at Hylands Park in Chelmsford, Essex. PRESS ASSOCIATION Photo. Picture date: Sunday August 21, 2011. Photo credit should read: Yui Mok/PA Wire

  • Rihanna Fragrance Launch - London

    Rihanna is pictured during a photocall to launch her fragrance Reb'l Fleur, at House of Fraser on Oxford Street, central London.

  • Rihanna in Belfast

    Rihanna is mobbed by fans and members of the media during the second day of filming her new pop video in the new Lodge area of north Belfast.

  • Rihanna in Belfast

    Rihanna during the first day of filming her new pop video in a field in Co Down.

  • V Festival 2011 - Chelmsford

    EDITORIAL USE ONLY. NO MERCHANDISING. Rihanna performing on the V Stage, during the V Festival at Hylands Park in Chelmsford, Essex.

  • Rihanna switches on Westfield Shopping Centre lights - London

    Rihanna before she turns on the Christmas lights at the Westfield shopping centre in London.

  • Brit Awards 2012 - Show - London

    Rihanna performs on stage during the 2012 Brit awards at The O2 Arena, London.

  • Stella McCartney Presentation - London Fashion Week

    Rihanna arriving for the Stella McCartney Winter 2012 London Evening Wear Presentation, in Mayfair, central London.

  • Capital FM's Jingle Bell Ball - Saturday - London

    Rihanna on stage during the 2011 Capital FM Jingle Bell Ball at the O2 Arena, London.

  • Battleship photocall - London

    Rihanna is seen at a photocall for new film Battleship at the Corinthia Hotel in London.

  • Album charts

    EMBARGOED TO 1900 AUGUST 12File photo dated 21/02/12 of Rihanna whose sixth album Talk That Talk is back in the number one spot after 38 weeks in the charts.

  • American Music Awards - Los Angeles

    Rihanna arrives at the American Music Awards 2007 at the Nokia Theatre in Los Angeles.

  • Radio 1's Hackney Weekend - London

    Rihanna performs at the Radio 1 Hackney Weekend at Victoria Park, Hackney, London.

  • Barclaycard Wireless Festival 2012 - London

    Rihanna performs at the Barclaycard Wireless Festival 2012 at Hyde Park in London.

  • MTV Video Music Awards 2012 - Arrivals - Los Angeles

    Rihanna arriving at the MTV Video Music Awards at the Staples Centre, Los Angeles.

  • 2012 iHeartRadio Music Festival - Day 1 - Show

    LAS VEGAS, NV - SEPTEMBER 21: Singer Rihanna performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Getty Images for Clear Channel)