well, you can, but are you sure? I'm pretty sure that the same qustion was asked on the fanpop spot and everyone anwsered that you could, but everything that you've posted would disapear, and all your contibutions would be lost. It may not be true though
ok, I'm not like REALLY sure, but I thinki you go to ur profile, click on the edit profile button, and there will be a box with your user name in it. If you ckick on it, I think you can backspace it and type in a new usre name, but I'm not wxsactly sure because I've never tryed to change my usre name before
well u can,t change ur username b,coz ur username is a thing which people can identify u on internet...u can,t change it.u should delete ur account and make a new one in place of previous account.