I was actually making that icon while listening to Nirvana's cover of that song. I couldn't think of what text to use when it just dawned on me "Why not the title of this song?!"

:) Silly ancedote, but what the heck.

And I'm a LJ newbie, too! *high fives other newbie, then hides from embarrassment*

I think you can find out how to credit someone in the FAQ questions section of LJ.