O.A.R.

From Discogs:

O.A.R. is an american rock band. The name is an acronym of "....of a revolution". The Band consists of:Marc Roberge (vocals, guitar)Chris Culos (drums, percussion)Richard On (guitar, backing vocals)Benj Gershman (bass guitar)Jerry DePizzo (saxophone, guitar, backing vocals)

From Lastfm:

O.A.R. (Of A Revolution) is an alternative rock band which formed in Rockville, Maryland, United States in 1996. The band consists of Marc Roberge (vocals, guitar), Chris Culos (drums, percussion), Richard On (guitar, backing vocals), Benj Gershman (bass), and Jerry DePizzo (saxophone, guitar, backing vocals). The band has released seven albums: "The Wanderer" (1997), Soul's Aflame (2000), "Risen" (2001), "In Between Now and Then" (2003), "Stories of a Stranger" (2005), "All Sides" (2008), and King (2011).

Read more about O.A.R. on Last.fm.

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From Wikipedia:

Of a Revolution, better known as O.A.R., is an 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 the Ohio State University and growing up in Rockville, Maryland.