The event is one of two "Change Rocks" highlight the campaign's effort to encourage One-Stop Early Voting at college campuses and other locations across the state. The other concert is May 1 Greensboro Coliseum Complex Pavilion Parking Lot.

"This is a defining moment for this country," said Win Butler of Arcade Fire. "We want to encourage people to get up, get out, and go vote."

"People are incredibly excited about this election and this primary," said Mac McCaughan of Superchunk. "Our music is a unique way to get people involved and participating."

Arcade Fire's first album, "Funeral" and the single "Cold Wind" were nominated for Grammys in the best Alternative Rock Album and Best Song Written for Television, Film, or Other Media categories respectively. Their second album, "Neon Bible," also was nominated for the Best Alternative Rock Album Grammy. The group recently came off a worldwide tour.

The band Superchunk was formed in 1989 in Chapel Hill. They have released more than eight albums, written a film score, and headlined benefit concerts.

The Obama campaign is making a statewide push to encourage voters to take advantage of the One Stop Early Voting process, which allows voters who are not registered or who have never voted before to register and vote at the same place, on the same day, all at once. Last week, the campaign announced 1-888-NC EARLY, a hotline that easily gives voters information on their early voting locations. This weekend, voters across North Carolina held more than 100 canvasses to take Senator Obama's message to voters and encourage them to vote early.