Rollback...what the...
Okay. The Hollywood Undead songs are:
Party Songs- Everywhere I Go, No. 5, and Bottle And A Gun
Heartbreak Songs- Black Dahlia, Pain, and Circles
Rebellious/Angry/Rockish Songs- Young, Sell Your Soul, and Paradise Lost
Then there is Slipknot...I'd suggest some of The Subliminal Verses to start out with, that is their lighter stuff and kinda sums up what they are about. If you like it, delve into their other albums. If not, well....there are other groups.