I'm not quite too sure how tall they are. I heard Matt, Jon, and Paul are all average height, around 5'9"-5'10". And Jason is pretty short around 5'7"-5'8", 5'9" tops. Well Jason's myspace listed as 5'7" though. I met Brian couldn't remember how tall he is because he was kinda trash that day and wasn't standing up straight. I would probably guess around 6'1" or 6'2". I wouldn't know. If you guys know tell me the truth.