Will.i.am On Surprise Cheryl Cole Jingle Bell Ball Performance: "Her Bodysuit Was Crazy"

The 'Great Times' star speaks to capital about his duet on '3 Words' at London's O2 Arena.

Will.i.am has confessed that he was forced to stare into the crowd during his surprise performance with Cheryl Cole at last night's (8th December) Jingle Bell Ball 2012.

The Black Eyed Peas man came on stage at London's O2 Arena for a duet of '3 Words' and said the Girls Aloud singer's outfit was "pretty crazy".

"She was looking pretty hot on stage so I had to look at the crowd because I didn't want to look at her bodysuit – her bodysuit was pretty crazy," he told Capital FM following the performance.

Cheryl's outfit was made up of a figure-hugging tuxedo-style jumpsuit as she wowed on stage for her solo performance.

The singer will be back on stage today (9th December) for day two of the event, alongside her Girls Aloud bandmates.

Other acts set to perform on the final day of the music extravaganza include Conor Maynard, Rita Ora and Pink.

Bruno Mars, One Direction and JLS were all among the star performers of night one, which was brought to a triumphant close by the 'Locked Out Of Heaven' singer.

Listen to Will.i.am reacting to taking to the stage with Cheryl last night below:

Will.i.am talks about performing with Cheryl at JBB

Keep your eyes and ears on the ball by visiting our special Jingle Bell Ball area as we come live from this year's event across the weekend.

You can see all the latest news, pictures, interviews and watch this year's performances on Capitalfm.com - follow the action in real time on our live blog .

Join the conversation about this year's Jingle Bell Ball by following @CapitalOfficial on Twitter with the hashtag #CapitalJBB and liking us on Facebook.