Lil Za is a rapper, boxer, Lil Twist's younger brother, and one of Justin's close friends. Lil Za is also signed to Lil Wayne's record label, Young Money Entertainment.
Him and Justin start hanging out in early 2013, they've both been in a lot of trouble ever since , but right now Xavier's life is back to normal and he says that boxing saved his life.
Justin Bieber playing the piano & joking around with Lil Za & Khalil - Los Angeles, October 11, 2014
Justin Bieber with Lil Za reenacting scenes from "Step Brothers" in Los Angeles - August 20, 2014