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30 November 2011, 15:07 | Updated: 30 November 2011, 15:25
The French producer gave a live performance of his duet with the 'OMG' singer in the US this week.
David Guetta and Usher gave a live performance of their single 'Without You' on American chat show Ellen yesterday (29th November).
The French DJ and R&B star performed their new collaboration together and even invited host Ellen DeGeneres on stage with them for the song's finale.
"You sounded amazing," Ellen tweeted to David in reply to his update about the performance.
David Guetta filmed the video for his new single 'Turn Me On' last week with Nicki Minaj and has promised fans something "unique".
The 'Where Them Girls At' producer recently said he is "very proud" of 'Without You because it's one of the most emotional songs he has made.
Watch David Guetta and Usher's performance on Ellen below: