are you a real justin bieber fan ? questions about justin bieber!they will prove how much you now about him and his life! seamount published on August 12, 2013 Stacked 1/5 Where was Justin Bieber born? Stratford,Canada Los Angeles,California 2/5 what was the name of his first song? One Time Baby 3/5 what is his mom's name? Pattie Bieber Pattie Mallette 4/5 who is his mentor? Ludacris Usher 5/5 Was he a guest star on CSI ? Yes No