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Reel Big Fish is an American ska punk band from Orange County, California. The band gained mainstream recognition in the mid-to-late 1990s, during the third wave of ska with the release of the gold certified album Turn the Radio Off.

Regina Ilyinichna Spektor ( born February 18, 1980) is a Russian-born American singer, songwriter, and pianist.

Fadil El Ghoul (born 2 April 1986), better known by his stage name R3hab (sylized as R3HAB; pronounced "rehab"), is a Dutch-Moroccan DJ, record producer and re-mixer from Breda.

The Rej3ctz are an American hip-hop and electronic music group that originated from California's party scene, and rose to prominence in late 2010 with their single "Cat Daddy", and its eponymous dance, which became a viral phenomenon, reaching more than 70 million views on YouTube.

Relient K is an American rock band formed in 1998 in Canton, Ohio, by Matt Thiessen, Matt Hoopes, and Brian Pittman during the band members' third year in high school and their time at Malone University. The band is named after guitarist Hoopes' automobile, a Plymouth Reliant K car, with the spelling intentionally altered to avoid trademark infringement over the Reliant name.

Reminisce Mackie (née Smith; May 30, 1980), known professionally as Remy Ma, is an American rapper. She was initially discovered by Big Pun, and came to prominence for her work as a member of Fat Joe’s group, Terror Squad.

Rend Collective (formerly known as Rend Collective Experiment) is a Northern Irish Christian folk rock worship band originating from Bangor, Northern Ireland.

Restless Heart is an American country music band established in 1984.

Rev Theory (formerly known as Revelation Theory) is an American rock band formed in 2002 in North Andover, Massachusetts.

Alexander O'Connor (born 4 May 1998), better known by his stage name Rex Orange County, is an English recording artist. He grew up in the village of Grayshott near Haslemere, Surrey.

Thomas Rhett Akins Sr. (born October 13, 1969) is an American country music singer and songwriter.

Rhiannon Giddens (born February 21, 1977) is an American musician. She is a founding member of the country, blues and old-time music band Carolina Chocolate Drops, where she is the lead singer, fiddle player, and banjo player.