El Grupo Nuevo de Omar Rodriguez Lopez is a band consisting of Omar Rodriguez Lopez (guitar), Cedric Bixler-Zavala (vocals), Juan Alderete de la Peña (bass guitar), Jonathan Hischke (synth bass) and Zach Hill (drums).
Cedric Bixler-Zavala (born November 4, 1974 in Redwood City, California) is a Grammy Award-winning American musician known for his work as frontman and lyricist of the progressive rock band The Mars Volta, and as frontman and occasional guitarist of the post-hardcore group At the Drive-In.
 Currently he is a singer in the band Antemasque, and also sings and plays guitar in his band Zavalaz.
 He has also played drums for a number of acts, including the dub act De Facto and more recently Big Sir and Anywhere.
Cheryl Elizabeth Gamble (born June 13, 1970), better known by her stage name Coko, also known as Cheryl Clemons, is an American R&B recording artist and television personality.
 Gamble is best known as the lead singer of the American R&B vocal trio Sisters With Voices (SWV).
 Aside from her R&B career, Gamble also has a solo gospel career.
The Mars Volta was an American rock band from El Paso, Texas, formed in 2001.
 The band's final lineup consisted of Omar Rodríguez-López (guitar, producer, direction), Cedric Bixler-Zavala (vocals, lyrics), Juan Alderete (bass), Marcel Rodríguez-López (keyboards, percussion) and Deantoni Parks (drums).
 The band formed following the break-up of Rodríguez-López and Bixler-Zavala's previous band, At the Drive-In.
 They are known for their energetic live shows and their concept albums.
Anywhere is a psychedelic rock/folk music project from Los Angeles, California, founded by Christian Eric Beaulieu (formerly of Triclops!
).
 Anywhere has featured a revolving door of musicians, including Cedric Bixler-Zavala, Mike Watt, Krist Novoselic, Dale Crover and Jonathan Hischke.
De-Loused in the Comatorium is the debut studio album by American progressive rock band The Mars Volta, released on June 24, 2003, on Gold Standard Laboratories and Universal Records.
 Based on a short story written by lead singer Cedric Bixler-Zavala and sound manipulation artist Jeremy Michael Ward, the concept album is an hour-long tale of Cerpin Taxt, a man who enters a week-long coma after overdosing on a mixture of morphine and rat poison.
 The story of Cerpin Taxt alludes to the death of El Paso, Texas artist—and Bixler-Zavala's friend—Julio Venegas (1972–1996).
Zavalaz is an American rock band from Los Angeles, California, formed in 2013.
 It features singer/guitarist Cedric Bixler-Zavala, guitarist Dan Elkan, bassist Juan Alderete and drummer Gregory Rogove.
Los Dregtones was a band from El Paso, Texas, led by Cedric Bixler-Zavala (vocals/drums), Ralph Jasso (guitar) and Jimmy Hernandez (bass).
 The line-up changed multiple times with Julio Venegas playing bass for a long duration while Hernandez was off at music school at the Atlanta Institute of Music in Atlanta, GA.
 Other members included Luis Prieto (Percussion), Brooks Miller (trumpet), Adam Young (drums), and Andrew McCoi (drums).
 In 1994, they released a demo recorded at Rosewood Studios by Mike Majors (produced by Sparta), titled "Five Song Alibi".
 The style of the album was not unlike what lead singer Cedric Bixler would later perform with The Mars Volta; psychedelic rock, with hints of salsa, reggae, and occasional Led Zeppelin-esque guitar riffs, with punk rock.
 The cover and insert art was drawn by Julio Venegas, which features a six armed serpent women with a third eye and long ugly hair, and a symbol on the end of its tail that would later be used by Cedric and Omar Rodríguez-López on The Mars Volta's stickers, shirts, and other merchandise.
 Guitarist Ralph Jasso would later play bass briefly for The Mars Volta.
The Fall on Deaf Ears was a musical group from El Paso, Texas, most notable for featuring Cedric Bixler-Zavala of At the Drive-In and The Mars Volta, who played drums, and Clint Newsom of Rhythm of Black Lines and The Hades Kick on guitar.
 The Fall on Deaf Ears played in the post-hardcore style typical of bands such as The Nation of Ulysses and Circus Lupus.
 They played live shows with bands such as Propagandhi, Egon and Select Your Fighter.
 The act only recorded a handful of songs before bassist Laura Beard and guitarist Sarah Reiser were killed in a car wreck in 1997.
 They were both 17 years old.
The Special 12 Singles Series is a series of twelve, 7 inch singles released by Gold Standard Laboratories in 2005; one for each month.
 Subscriptions were available for either January through June, July through December, or all 12 singles.
 Select tracks from this series were released as a digital album on iTunes on October 3, 2006, with an extended version of "Live Private Booths".
 Alavaz Relxib Cirdec is a pseudonym used by Cedric Bixler-Zavala and in fact, it's his name backwards.
 There were 500 copies of each single pressed by GSL and are now fairly rare.

Question: Who has been in more musical groups, Cedric Bixler-Zavala or Coko?
Answer: Cedric Bixler-Zavala