Lady Gaga performed at Tony Bennett's birthday party in New York City.

Lady Gaga performs an incredible set of jazz hits during Tony Bennett's 90th Birthday celebration on Wednesday night at the Rainbow Room, a fine-dining restaurant and event space located on the 65th floor of the Comcast Building in New York City.


Wearing a stunning black gown made by designer Brandon Maxwell, Lady Gaga delivered powerful renditions of jazz songs such as 'Bang Bang' and 'La Vie En Rose'.


She was also joined onstage by the legendary singer Stevie Wonder. The two performed Stevie's 1970's award-winning hit singles such as 'You Are The Sunshine Of My Life' and 'I Wish'.


Lady Gaga also performed an acoustic version of her own iconic Grammy winning song 'Bad Romance'.


More videos with higher quality and HQ photos to be soon uploaded in this article.