My suggestion for a song:
Go on youtube.
Search for "Guitar Hero 3".
Find a song from there that you would like to play.
The songs on Guitar Hero 3 have no profanity in it since they wanted it to be rated "T for teens".
Of course, there are one or two that do have profanity in it. They censored it.
My current favourites are: Slither - Velvet Revolver, Stricken - Disturbed, Before I forget - Slipknot, Cult of Personality - Living Colour, One - Metallica, Take this Life - In Flames, and Welcome to the Jungle - Guns N' Roses. In my opinion are the best songs in that game. Which also, are good songs in general.