More confirmations are coming in for The Bamboozle 2009. The current lineup includes: 3OH!3, A Rocket To The Moon, Ace Enders And A Million Different People, All Time Low, Bayside, Bloodhound Gang, Boys Like Girls, Brokencyde, Cobra Starship, Danger Radio, Enter Shikari, Face to Face, Fall Out Boy, Forever the Sickest Kids, GWAR, Hyper Crush, Mac Lethal, Mercy Mercedes, NeverShoutNever!, New Found Glory, No Doubt, Parkway Drive, Scotty Don't, Sonny, The Cab, Get Up Kids, and We The Kings.

Rumoured by not confirmed acts include NOFX, Maroon Five, Gorilla Biscuits, Britney Spears, and Sublime.