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15 March 2013, 09:52 | Updated: 15 March 2013, 12:59
The Black Eyed Peas man gives fans the first taste of his latest single featuring the teen star.
Will.i.am has premiered his brand new single '#ThatPower' featuring Justin Bieber on Capital FM.
The Black Eyed Peas man said he wanted fans to guess who was featuring on the track as it hit the airwaves for the first time any where in the world.
Speaking about the song, Will.i.am said: "It's up-tempo, it's Friday. I'm proud of the collaboration. Hopefully the people listening can guess who it is."
The up-tempo track will be taken from the singer's forthcoming new studio album '#willpower' – which is set to be released next month.
You can hear Will.i.am's new song '#ThatPower' throughout the day - so keep it Capital.
Check out a preview below:
Speaking about how he recorded the song, Will.i.am said: "We recorded that during the BRITs [and] recording that at Metropolis.
"So actually we went shopping first and we were like 'hey, lets just have a chilled day' and we went shopping for shoes, then after that we went to the studio, watched the BRITs, recorded that and then trucked off to see Justin Timberlake perform.
He confessed: "So that was a pretty full day."
Watch Will.i.am talking about Justin Bieber:
Meanwhile, Will recently came to the defence of the teen following his recent stay in London – which involved an altercation with paparazzi.
The rapper said that the paparazzi can be "the most disrespectful" people in the industry and praised the support network he has behind him.
Will.i.am shows you how to do '#ThatPower':