72,967 Lady Gaga Photos & High Res Pictures - Getty Images

In this image released on November 28, Tony Bennett and Lady Gaga perform on stage during MTV Unplugged: Tony Bennett & Lady Gaga at the Angel Orensanz Center in New York City. MTV Unplugged: Tony Bennett & Lady Gaga will air Thursday, Dec. 16, at 9 p.m. ET on MTV in the U.S. And across its global platforms. Get premium, high resolution news photos at getty

73,868 Lady Gaga Photos & High Res Pictures - Getty Images

72,929 Lady Gaga Photos & High Res Pictures - Getty Images

83 Lady Gaga 2007 Stock Photos, High-Res Pictures, and Images - Getty Images

Lady Gaga, Los Angeles, CA Stock Photo - Alamy

73,868 Lady Gaga Photos & High Res Pictures - Getty Images

73,868 Lady Gaga Photos & High Res Pictures - Getty Images

44,260 Photos Of Lady Gaga Stock Photos, High-Res Pictures, and Images - Getty Images

72,929 Lady Gaga Photos & High Res Pictures - Getty Images

73,868 Lady Gaga Photos & High Res Pictures - Getty Images

72,929 Lady Gaga Photos & High Res Pictures - Getty Images

83 Lady Gaga 2007 Stock Photos, High-Res Pictures, and Images - Getty Images

73,868 Lady Gaga Photos & High Res Pictures - Getty Images

44,253 Lady Gaga Picture Stock Photos, High-Res Pictures, and Images - Getty Images

72,929 Lady Gaga Photos & High Res Pictures - Getty Images

69,011 Lady Gaga Photos & High Res Pictures - Getty Images