AP - Snowball the cockatoo can't get enough of the Backstreet Boys. The 11-year-old medium sulfur-crested cockatoo lifts his legs, squawks and bobs his head, flashing his bright yellow crest to the beat of the boy band's "Everybody (Backstreet's Back)." He even takes a bow with a vigorous bob of his head at the end of the 1997 pop tune.More...