Sean Radcliff has 3 O.A.R. concerts.

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).