Britney Spears' husband KEVIN FEDERLINE has hacked off his hair for a charity group that makes wigs for cancer patients. The aspiring rapper is currently working on his debut album while vacationing with his family in Maui, Hawaii, but took time out to make the big-hearted gesture. Spokesperson MARILYN LOPEZ says, "He just chopped of 10 inches of his hair for Locks Of Love." She adds, "The album comes out at the end of May (06) or early summer. "He's expected to do some club dates and eventually he'll come to New York."