A new generation of R&B singers — Alicia Keys, Destiny's Child and the late Aaliyah — were the big winners at Wednesday's American Music Awards, picking up two awards each. Country singer Tim McGraw also received two trophies at the annual popularity contest. Michael Jackson — on hand to accept his Artist of the Century award — thanked actor Marlon Brando, calling him "my second father." A tape of Jacko performing "Man in the Mirror" was supposed to air during the three-hour ABC telecast, but reps for the onetime King of Pop reportedly demanded show producers pull it at the last minute. Insiders speculate that Jacko's camp feared airing the tape would have jeopardized his chances of performing at next month's Grammy Awards. It's just the latest wrinkle in the ongoing tug-of-war between the two awards shows.