Justin Bieber's trying to grow a mo! Tue-10-Sep-13 10:12 Share this JUSTIN BIEBER is trying to grow a moustache.He was seen with a thin line of hair on his upper lip at New York Fashion Week. You May Also Like Justin Bieber’s bodyguard throws a fan's dad down the stairs - WTF?! Who gave Selena Gomez a 3 Million Dollar Diamond? Justin Bieber threatened with arrest by Australian airport police Become a fan of The Edge on Facebook and on Twitter .