Lady Gaga is a bona fide pop star, but the singer says recording jazz music was easier than pop. Recording artist Lady Gaga gestures at a Tony Bennett and Lady Gaga concert taping on Monday, July 28, 2014, in New York. Recording artists Lady Gaga, left, and Tony Bennett, attend a Tony Bennett and Lady Gaga concert taping on Monday, July 28, 2014, in New York. Recording artists Lady Gaga, left, and Tony Bennett, attend a Tony Bennett and Lady Gaga concert taping on Monday, July 28, 2014, in New York. Recording artist Lady Gaga attends a Tony Bennett and Lady Gaga concert taping on Monday, July 28, 2014, in New York.