At age 69, Paul McCartney is busier than he was when he was 29. His new album, Kisses On The Bottom, came out February 7. He got his own star on the Hollywood Walk of Fame on February 9. He was honored as MusiCares Person of the Year on February 10. And he closed out Sunday night's Grammy Awards with a performance of The Beatles' "The End" that featured a jam with Bruce Springsteen, Joe Walsh and Dave Grohl.