Justin Bieber is a lefty because he holds the neck of his violão, guitarra with his right, and strums with his left. I do the same thing because I'm a lefty!
hes left handed, if you look at when he signes autographys he holds the pen or pencil at the very topo, início so like when he rights the ink does not smug on his hand, cause if your left handed and composição literária you hand will get ink on it, try it! you will see. so ya
lefty everyone who says other wise is wrong plus if you were a true belieber you would know this and if you pay attention he plays left hand violão, guitarra too.