John Mayer, Jimmie Vaughan, Derek Trucks and Doyle Bramhall were among the stars who helped Eric Clapton belatedly celebrate his 70th birthday at the second of two Madison Square Garden shows in New York on Sunday night (03May15). After wowing fans with hits like Tears From Heaven and Cocaine, the guitar great told the audience, "I want to thank you for helping me celebrate. This is the best birthday I ever had." Clapton turned 70 in March (15).