Lady Gaga surprised the audience as she joined Tony Bennett onstage for an impromptu performance live at The Hollywood Bowl in Los Angeles yerterday night. The couple performed 'Cheek To Cheek,' the song from their number one duets album and 'The Lady Is A Tramp' from Tony's Duets II album. Gaga attended the show with Christian Carino, her father Joe Germanotta and her sister Natali.

The concert was a celebration for Bennett's 55th anniversary of hitting the iconic Hollywood Bowl stage for the first time on July 1962. Gaga told the crowd at the show: "I couldn't be more honored to be here with my great friend, I love you so much Tony. I know everybody feels that way. For the first time I got to see Tony from the audience tonight. You're incredible!"

Gaga and Tone have performed on the same stage together back in 2015 with their Tony Bennett and Lady Gaga: Cheek To Cheek Tour in support of their album released on September 2014.