He may have been caught up in a paternity test scandal this year, and been spotted cheekily groping his girlfriend, Selena Gomez, but the allegations turned out to be untrue and the 17-year-olds name was cleared. The teen popstar is adored by millions of young children across the globe but parents have nothing to worry about with this one. At his 17th birthday bash he banned alcohol to prevent underage drinking and he spent his Valentines Day visiting a childrens hospital.