You know, I'd help you if you had simply asked me. As with anyone else. But... you said you like the My Hero by Foo Fighter. That reason alone makes me want to rate your thread even more xD. It is one of my favorite songs.
And, if anyone hasn't answered this yet, to change your "About Me" information follow this steps:
Go to your Control Panel (or CP for short) which is located on the "User CP" option at the left of your screen, at the left of "FAQ" (Frequently Asked Questions). Then, at your left, under "Your Profile", click the "Edit your details" option. There you go.