Paul Simon seemed happy and energetic performing at the Washington Convention Center on Saturday night as part of AARP's 50th-anniversary celebration. That is, until he caught a glimpse of his face magnified on the venue's supersize monitors. "I'm really grateful for that close-up," Simon quipped. "It's like when I look in the mirror close up and say, 'Oh, great.' " "You still look good, Paul!" someone from the audience shouted. Yes, and, more importantly, he sounded good. The 66-year-old singer, voice virtually ... (more)