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O.A.R. (Of a Revolution)
O.A.R. performing at Lincoln Theater in 2015
Background information
Origin	Rockville, Maryland, United States
Genres	Alternative rock, indie rock, roots rock, heartland rock
Years active	1996–present
Labels	Vanguard, Wind-up, Lava, Atlantic
Members	Marc Roberge Chris Culos Richard On Benj Gershman Jerry DePizzo
Website	www.liveoar.com

O.A.R. (short for Of A Revolution) is an American rock band, founded in 1996 in Rockville, Maryland.^[1] The band consists of lead vocalist/guitarist Marc Roberge, drummer Chris Culos, guitarist Richard On, bassist Benj Gershman, and saxophonist/guitarist Jerry DePizzo. Touring members include trumpet player Jon Lampley and keyboardist Mikel Paris. Known for their live shows and extensive summer touring, the band has released ten studio albums and six live records—most recently Live From Boston in December 2024. Four of its members grew up in Rockville and attended Thomas S. Wootton High School. After graduating, they studied at Ohio State University, where they met DePizzo from Youngstown, Ohio.