Christina Aguilera has started a new war of words by subtly dissing super-producer Scott Storch on her new album Back to Basics. The pop star signs off on the track F.U.S.S. with the line, "Looks like I didn't need you/Still got the album out," after berating the hip-hop hitmaker for walking away from her new album to concentrate on working with Paris Hilton. Coy Aguilera tells Rolling Stone magazine, "By no means am I trying to start anything... I just needed to get things off my chest." The producer recently told the same publication that he and Aguilera had fallen out when she refused to send a jet to pick him up in Florida and fly him out to Los Angeles, where she was recording. Aguilera laughs, "An airplane? I thought he was supposed to be a big baller (super rich)."