Of a Revolution, better known as O.A.R., American rock band consisting of Marc Roberge (vocals, guitar), Chris Culos (drums, percussion), Richard On (guitar, backing vocals), Benj Gershman (bass guitar), Jerry DePizzo (saxophone, guitar, backing vocals). Due to massive online distribution over campus networks, the band has become a hit among college students, with many songs relating to the band members' personal lives at Ohio State University (Columbus) and growing up in Rockville, Maryland.

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