Tony Bennett

Lady Gaga will join a number of other stars, including crooner Tony Bennett - with who she recently recorded an album, 'Cheek to Cheek' - to perform at the switching on of the festive lights at the iconic building in New York City on December 3.

Lady Gaga admits she was ‘very nervous’ when she started working with the jazz legend on their album, Cheek to Cheek and relied on alcohol to help her stay calm in the recording studio.