The 'Bad Romance' singer joined jazz musician Brian Newman for a small performance in New York.
Lady Gaga And JLS Perform At Charity Concert
The 'Born This Way' singer stole the show at Gary Barlow's charity event with performances of 'Born This Way' and 'Marry The Night'.
Lady Gaga, JLS, and Jessie J were among several acts who performed to a sold-out Manchester arena last night (17th November) to raise money for charity.
Children In Need Rocks was organised by X Factor judge Gary Barlow and featured a star-studded line-up of artists also including Coldplay, Ed Sheeran, Dappy, Tulisa Contostavlos and Kelly Rowland.
Barlow's supergroup The Collective opened the event with a performance of their charity single, a cover of Massive Attack's 'Teardrop'.
Lady Gaga then took to the stage for a crowd-pleasing set of 'Born This Way' and new single 'Marry The Night', which saw the singer leading a ballet inspired dance routine.
JLS celebrated the launch of their third album 'Jukebox' this week with performances of 'Makes Me Wanna' and 'Take A Chance On Me' while Jessie J sang 'Nobody's Perfect' after a James Morrison duet of their single 'Up'.
Other notable performances on the night include Kelly Rowland singing her hit 'Down For Whatever', Dappy and Fazer belting out number one single 'No Regrets' and Ed Sheeran giving an acoustic performance of 'The A Team'.
After Gary Barlow led the crowd through a rendition of Take That classic 'Back For Good', Coldplay closed the show with 'Paradise', 'Every Teardrop Is A Waterfall' and 'Viva La Vida'.
The Collective released this year's Children In Need single 'Teardrop' earlier this week.
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