lol, fail thread.
Tonight Alive are an Australian pop-punk band who are releasing their first album on Friday. It leaked today and one of the tracks has guest vocals from Mark Hoppus, no one knew he was going to be on the album. The album was produced by Mark Trombino so that's probably how they got the hook up.
I'll upload the song to Youtube in a minute.
Edit: Here's the song, Mark comes in at 0:59