Nicole Scherzinger at Celebrity Video Sightings at BBC Radio on December 03, 2012 in London, England (Footage by WireImage Video/Getty Images)

James Arthur at Celebrity Video Sightings at BBC Radio on December 03, 2012 in London, England (Footage by WireImage Video/Getty Images)

Jahmene Douglas, Christopher Maloney, James Arthur at Celebrity Video Sightings at BBC Radio on December 03, 2012 in London, England (Footage by WireImage Video/Getty Images)

Nicole Scherzinger at Celebrity Video Sightings at BBC Radio on December 03, 2012 in London, England (Footage by WireImage Video/Getty Images)

Kylie Minogue at BBC Radio Two on November 23, 2012 in London, England (Footage by WireImage Video/Getty Images)

Bruno Mars at BBC Radio Two on November 23, 2012 in London, England (Footage by WireImage Video/Getty Images)

Myleene Klass at BBC Radio Two on November 23, 2012 in London, England (Footage by WireImage Video/Getty Images)

Mark Strong - Celebrity Video Sightings at BBC Radio Two on January 21, 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)

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

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

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

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

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

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

Crew setting up television camera and sound boom / Camera crew film presenters C H Middleton and Elizabeth Cowell touring the 1939 Chelsea Flower Show / Cowell with children digging in garden.

INTERVIEW - Nick Grimshaw at Celebrity Sightings at BBC Radio on September 24, 2013 in London, England (Footage by WireImage Video/Getty Images)

Kimberley Walsh at Celebrity Video Sightings at BBC Radio on September 23, 2013 in London, England (Footage by WireImage Video/Getty Images)

Kimberley Walsh at Celebrity Video Sightings at BBC Radio on September 23, 2013 in London, England (Footage by WireImage Video/Getty Images)

Jake Gyllenhaal at Celebrity Video Sightings at BBC Radio on September 23, 2013 in London, England (Footage by WireImage Video/Getty Images)

Jake Gyllenhaal at Celebrity Video Sightings at BBC Radio on September 23, 2013 in London, England (Footage by WireImage Video/Getty Images)

Fearne Cotton at Celebrity Video Sighting at BBC Radio One on September 08, 2013 in London, England (Footage by WireImage Video/Getty Images)

Rizzle Kicks at Celebrity Video Sighting at BBC Radio One on September 08, 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)