After nearly a decade as a mega-popular teen idol, Justin Bieber is back. The pop superstar is making his comeback, gaining a resurgence in popularity and heavy radio play. From his early smash hits like One Less Lonely Girl and Baby to chart-topping singles like What Do You Mean? Justin Bieber has secured millions of adoring fans around the world. The Justin Bieber wall calendar is a must-have for all the Beliebers out there.