The dude could be the drummer AND the lead singer though.
http://en.wikipedia.org/wiki/Lifehouse_(band)
We stuck around for like halfway through the first song. It was pretty hilarious to see them cram like 50 people in front of the stage while the 4-5,000 people who stayed for the concert just sat there quietly.
One of the members of the Nats Pack was going crazy by himself, waving his arms and pointing at the crowd randomly.