Jack Donaghy - Popular Sitcoms

Benefit concert rocks season finale of `30 Rock'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 ...