Justin's Mentor: Usher
After Scooter Braun signed Bieber to a management deal, he courted big names to help further Bieber's career — among them, Usher and Justin Timberlake. Usher won out, and Bieber signed to Raymond Braun Media Group, a joint venture between Usher and Braun. Usher went on to help secure Bieber a record deal at Island Def Jam under honcho L.A. Reid. Usher and Bieber have performed several times together, including at the 2009 holiday concert for New York City radio station Z100 (pictured here) and at the 2011 Grammy Awards.