From what I understand, the Sun is basically the English Weekly World News i.e. a complete trash tabloid, and it's largely speculated that this is pretty clearly a fake story. I'm pretty sure that if his voice hasn't cracked, he's probably;y not capable of reproducing yet.
EDIT: I just checked their Homepage at 3 AM on Saturday and it is totally covered in at least 7 or 8 different articles about this story. Other stories include multiple gratuitous murders and a Transsexual mafia Boss named Kitty. So the Sun if the most American newspaper in England, I guess.