WHAT: Justin Bieber Wants YOU in His World! Detroit Singing Competition Detroit’s singing competition is open to any persons 13-17 years of age. To participate, you must pre-register atwww.987AMPradio.com Deadline is Thursday, January 13, 2010 at 11:59 p.m. 50 (Fifty) singers will be randomly selected from all eligible pre-registrants and entered into the contest as …