Lady Gaga was one of the many performers at Tony Bennett 90th birthday celebration, which aired on Tuesday night on NBC. Gaga, who collaborated with Mr. Bennett on a 2014 duets album Cheek to Cheek, took the stage twice to serenade the jazz legend with "La Vie En Rose" and "The Lady Is A Tramp." "You're my family, Tony Benedetto," Gaga said as she showed off her trumpet tattoo in honor of Bennett. "You really changed my life. You are indeed an icon, but for me, you're so much more than that