Lady Gaga Surprises Crowd at Tony Bennett's Show at Hollywood Bowl

Lady Gaga made a surprise appearance at Tony Bennett's show at Hollywood Bowl on Saturday night. The Joanne superstar joined her friend and frequent collaborator, who will turn 91 on August 3rd to perform two of their favorite jazz standards, including "The Lady Is A Tramp" and "Cheek to Cheek."

"I couldn't be more honored to be here with my great friend, I love you so much Tony," Gaga told the crowd at the show, celebrating the 55th anniversary of the jazz legend's first-ever performance at the iconic venue. "I know everybody feels that way. For the first time I got to see Tony from the audience tonight. You're incredible!"

Related: Lady Gaga plays Hollywood Bowl, says she doesn't hate Hollywood anymore

Gaga and Tony performed at the Hollywood Bowl for the first time together in 2015 during the world tour supporting the duet album Cheek to Cheek.

"I'll never forget it, because from that moment, we just became great, great friends," Bennett told Billboard earlier this week. "And to this day, I'm still thinking of doing another album with her. And she’s just a wonderful artist to perform with and a great person that we love very much."

Enjoy fan videos of Gaga and Tony performing at Hollywood Bowl last night below...

A post shared by Jose Gramajo (@josegramajo) on Jul 15, 2017 at 10:33pm PDT

A post shared by Rjferb (@rjferb) on Jul 15, 2017 at 11:54pm PDT