Hindsight: Stars turn out for '30 Rock' benefit

NEW YORK (AP) -- How hip is the room at "30 Rock" these days? Hip enough to bring in Mary J. Blige, Clay Aiken, Elvis Costello, Norah Jones, Cyndi Lauper, Sheryl Crow, Wyclef Jean, Moby, Ad-Rock, Steve Earle and a backstage party's worth of other musicians for a "benefit...