


Shape-shifting from approximations of Mae West to Marilyn Monroe to a glittery cat-suited vamp, she twirled this or that accouterment like an old-time burlesque performer. Around him fluttered that irresistible force, Lady Gaga, 29, an eccentric living bauble, in a succession of extravagant showgirl outfits and wigs. Bennett embodied the patriarch of American popular song he has been for the last two decades. With his customary grace and humility, Mr. Bennett, a living monument at 88, who, when he moved across the stage, proceeded slowly, cautiously and with dignity. An irresistible force and an immovable object: that would be Lady Gaga and Tony Bennett on Friday evening at Radio City Music Hall where they sang more than 30 standards, separately and together, before a respectful multigenerational audience that tilted older.
