Vanessa Feltz at Comic Relief Celebrity Sightings at BBC Radio One on March 14, 2013 in London, England (Footage by WireImage Video/Getty Images)

David Walliams at Comic Relief Celebrity Sightings at BBC Radio One on March 14, 2013 in London, England (Footage by WireImage Video/Getty Images)

Little Mix at Comic Relief Celebrity Sightings at BBC Radio One on March 14, 2013 in London, England (Footage by WireImage Video/Getty Images)

Wretch 32 at Comic Relief Celebrity Sightings at BBC Radio One on March 14, 2013 in London, England (Footage by WireImage Video/Getty Images)

David Walliams at Comic Relief Celebrity Sightings at BBC Radio One on March 14, 2013 in London, England (Footage by WireImage Video/Getty Images)

Connor Maynard at Comic Relief Celebrity Sightings at BBC Radio One on March 14, 2013 in London, England (Footage by WireImage Video/Getty Images)

Union J at Comic Relief Celebrity Sightings at BBC Radio One on March 14, 2013 in London, England (Footage by WireImage Video/Getty Images)

Bill Medley at Celebrity Video Sightings at BBC Radio on October 20, 2013 in London, England (Footage by WireImage Video/Getty Images)

Ronnie Corbett at Celebrity Video Sightings at BBC Radio on October 20, 2013 in London, England (Footage by WireImage Video/Getty Images)

Warwick Davis at Celebrity Video Sightings at BBC Radio on October 20, 2013 in London, England (Footage by WireImage Video/Getty Images)

Fearne Cotton at Celebrity Video Sightings at BBC Radio on October 20, 2013 in London, England (Footage by WireImage Video/Getty Images)

Will.i.am at Celebrity Video Sightings at BBC Radio on July 12, 2013 in London, England (Footage by WireImage Video/Getty Images)

Luisa Zissman & Leah Totton at Video Sightings at BBC Radio on July 12, 2013 in London, England (Footage by WireImage Video/Getty Images)

Luisa Zissman at Celebrity Video Sightings at BBC Radio on July 12, 2013 in London, England (Footage by WireImage Video/Getty Images)

Leah Totton at Celebrity Video Sightings at BBC Radio on July 12, 2013 in London, England (Footage by WireImage Video/Getty Images)

Emelia Fox at the BBC on January 23, 2014 in London, England.

Ross Kemp at the BBC on January 23, 2014 in London, England.

Lisa Stansfield at the BBC on January 23, 2014 in London, England.

Fearne Cotton at Celebrity Video Sightings at BBC Radio on December 16, 2013 in London, England (Footage by WireImage Video/Getty Images)

Eliza Doolittle at Celebrity Video Sightings at BBC Radio on December 16, 2013 in London, England (Footage by WireImage Video/Getty Images)

469157009 - Prince Charles & Camilla, Duchess of Cornwall arrive at BBC Broadcasting House

Miley Cyrus at Celebrity Video Sightings at BBC Radio One on November 12, 2013 in London, England (Footage by WireImage Video/Getty Images)

Charlie Simpson & Fearne Cotton sighted at Radio One, London SIGHTED: Charlie Simpson & Fearne Cotton at BBC Radio One on April 26, 2011 in London, England (Footage by WireImage Video/Getty Images)

ATMOSPHERE: BBC Concert Diamond Jubilee at Buckingham Palace on June 04, 2012 in London, England (Footage by WireImage Video/Getty Images)