The beats will be infectious at today's party.
Then: Carlos Santana (60 today) was one of the classier, more facially expressive of the Woodstock crew. Now: Santana is the grand old man of the mainstream music scene, acting like the cool bachelor uncle at the family reunion who pulls quarters out of your ears and lets the kids win at basketball. What was Santana's biggest hit before his most recent album blew up the spot?