Cheryl Cole, Nadine Coyle, Kimberley Walsh, Sarah Harding and Nicola Roberts arrive at BBC Radio One on November 12, 2012 in London, England (Footage by WireImage Video/Getty Images)

Cheryl Cole, Nadine Coyle, Kimberley Walsh, Sarah Harding and Nicola Roberts arrive at BBC Radio One on November 12, 2012 in London, England (Footage by WireImage Video/Getty Images)

Cheryl Cole, Nadine Coyle, Kimberley Walsh, Sarah Harding, Nicola Roberts at BBC Radio One on November 12, 2012 in London, England (Footage by WireImage Video/Getty Images)

Cheryl Cole, Nadine Coyle, Kimberley Walsh, Sarah Harding, Nicola Roberts at BBC Radio One on November 12, 2012 in London, England (Footage by WireImage Video/Getty Images)

Cheryl Cole, Nadine Coyle, Kimberley Walsh, Sarah Harding and Nicola Roberts arrive at BBC Radio One on November 12, 2012 in London, England (Footage by WireImage Video/Getty Images)

Cheryl Cole, Nadine Coyle, Kimberley Walsh, Sarah Harding, Nicola Roberts at BBC Radio One on November 12, 2012 in London, England (Footage by WireImage Video/Getty Images)

Louis Smith at BBC Radio One Louis Smith at BBC Radio Studios on September 25, 2012 in London, England (Footage by WireImage Video/Getty Images)

Girls Aloud at Celebrity Video Sightings at BBC Radio One on December 14, 2012 in London, England (Footage by WireImage Video/Getty Images)

Hugh Jackman at Celebrity Video Sightings at BBC Radio on December 07, 2012 in London, England (Footage by WireImage Video/Getty Images)

Gary Barlow sighted outside BBC Radio Studios. Gary Barlow at BBC Radio Studios. on October 02, 2012 in London, England (Footage by WireImage Video/Getty Images)

Carolynne Poole, Melanie Masson, Kye Sones sighted outside BBC Radio Studios. Carolynne Poole, Melanie Masson, Kye Sones at BBC Radio Studios. on October 02, 2012 in London, England (Footage by WireImage Video/Getty Images)

Kye Sones sighted outside BBC Radio Studios. Kye Sones at BBC Radio Studios. on October 02, 2012 in London, England (Footage by WireImage Video/Getty Images)

Neil Sedaka sighted outside BBC Radio Studios. Neil Sedaka at BBC Radio Studios. on October 02, 2012 in London, England (Footage by WireImage Video/Getty Images)

Claudia Winkleman sighted outside BBC Radio Studios. Claudia Winkleman at BBC Radio Studios. on October 02, 2012 in London, England (Footage by WireImage Video/Getty Images)

Rod Stewart arriving BBC Radio Two on November 09, 2012 in London, England (Footage by WireImage Video/Getty Images)

Rod Stewart leaving BBC Radio Two on November 09, 2012 in London, England (Footage by WireImage Video/Getty Images)

Jessica Ennis leaving BBC Radio Two on November 09, 2012 in London, England (Footage by WireImage Video/Getty Images)

Rylan Clark sighted at BBC Radio Studios Rylan Clark at BBC Radio Studios on October 03, 2012 in London, England (Footage by WireImage Video/Getty Images)

Jahmene Douglas, James Arthur, Rylan Clark sighted at BBC Radio Studios Jahmene Douglas, James Arthur, Rylan Clark at BBC Radio Studios on October 03, 2012 in London, England (Footage by WireImage Video/Getty Images)

Jahmene Douglas, James Arthur, Rylan Clark sighted at BBC Radio Studios Jahmene Douglas, James Arthur, Rylan Clark at BBC Radio Studios on October 03, 2012 in London, England (Footage by WireImage Video/Getty Images)

Lucy Spraggan, Ella Henderson, Jade Ellis sighted at BBC Radio Studios Lucy Spraggan, Ella Henderson, Jade Ellis at BBC Radio Studios on October 03, 2012 in London, England (Footage by WireImage Video/Getty Images)

Tulisa Contostavlos sighted at BBC Radio Studios Tulisa Contostavlos at BBC Radio Studios on October 03, 2012 in London, England (Footage by WireImage Video/Getty Images)

Tulisa Contostavlos sighted at BBC Radio Studios Tulisa Contostavlos at BBC Radio Studios on October 03, 2012 in London, England (Footage by WireImage Video/Getty Images)

Lucy Spraggan, Ella Henderson, Jade Ellis sighted at BBC Radio Studios Lucy Spraggan, Ella Henderson, Jade Ellis at BBC Radio Studios on October 03, 2012 in London, England (Footage by WireImage Video/Getty Images)