R

R. City (short for Rock City; and formerly Planet VI) is an American musical duo formed in 2003, from Saint Thomas, U.S. Virgin Islands. The duo consists of brothers Theron "Uptown AP" Thomas and Timothy "A.I." Thomas.

Robert Sylvester Kelly (born January 8, 1967) is an American singer, songwriter, musician, record producer, actor and former semi-professional basketball player.

R.E.M. was an American rock band from Athens, Georgia, formed in 1980 by drummer Bill Berry, guitarist Peter Buck, bassist Mike Mills, and lead vocalist Michael Stipe.

R5 was an American pop rock band formed in Los Angeles, California, in 2009. The band consisted of Ross Lynch (lead vocals/rhythm guitar), Riker Lynch (bass guitar/vocals), Rocky Lynch (lead guitar/vocals), Rydel Lynch (keyboard/vocals), and Ellington Ratliff (drums/vocals).

REO Speedwagon (originally styled as R.E.O. Speedwagon) is an American rock band from Champaign, Illinois. Formed in 1967, the band cultivated a following during the 1970s and achieved significant commercial success throughout the 1980s. 

Ra Ra Riot is an American indie rock band from Syracuse, New York, consisting of vocalist Wes Miles, bassist Mathieu Santos, guitarist Milo Bonacci, violinist Rebecca Zeller and drummer Kenny Bernard.

Rachael Maureen Lampa (born January 8, 1985) is an American contemporary Christian singer, songwriter and record producer.

Rachael Yamagata (born September 23, 1977) is an American singer-songwriter and pianist from Arlington, Virginia. She began her musical career with the band Bumpus before becoming a solo artist and releasing five EPs and four studio albums. Her songs have appeared on numerous television shows and she has collaborated with Jason Mraz, Rhett Miller, Bright Eyes, Ryan Adams, Toots and the Maytals and Ray Lamontagne.

Rachel Kelly Crow (born January 23, 1998) is an American singer, comedian, and actress.

Rachel Holder (born October 27, 1992 in Chattanooga, Tennessee) is an American country music singer and songwriter.

Rachel Ashley Platten (born May 20, 1981) is an American singer and songwriter.

The Radioactive Chicken Heads are an American band formed in Orange, California in 1993. Operating anonymously under the guise of mutant chickens and vegetables, the Chicken Heads' music is primarily a mix of punk rock, heavy metal and ska punk, a blend the band advertises as "Genetically Modified Punk Rock".