Los Super Seven is an American supergroup which debuted in 1998. According to Allmusic's Stephen Thomas Erlewine, "Los Super Seven isn't a band, per se – it's a collective, organized by manager Dan Goodman, who comes up with a concept for each of the group's albums and assembles a band to fit." The collective has released three albums to date, with wildly varying personnel. Only Ruben Ramos and Rick Trevino are featured on all three releases. The group won a Grammy Award for Best Mexican/Mexican-American Album in 1999 for its self-titled album. Their musical style has changed with each incarnation, blending sounds from Tejano, mariachi, Cuban, Afro-Peruvian, Brazilian, blues, rhythm and blues, country, jazz and rock. The personnel included the members of Texas Tornados, Los Lobos, Calexico, Ozomatli, and others. Discography Los Super Seven (1998) Canto (2001) Heard It on the X (2005) Members Members on Los Super Seven Joe Ely – guitar, vocals Freddy Fender – vocals David Hidalgo (of Los Lobos) – guitar, vocals Flaco Jiménez – accordion, vocals Ruben Ramos – vocals Cesar Rosas (of Los Lobos) – guitar, vocals Rick Treviño – guitar, vocals Doug Sahm – vocals Max Baca – bajo sexto, vocals Joel Guzman – accordion, vocals Steve Berlin (of Los Lobos) – Producer Rick Clark – Music consultant Dan Goodman – Executive producer Dave McNair – Engineer/mixer Members on Canto Wil-Dog Abers (of Ozomatli) – bass Susana Baca – vocals David Hidalgo – bass, guitar, percussion, arranger, drums, vocals, requinto Raul Malo (of the Mavericks) – vocals Ruben Ramos – vocals Rick Treviño – vocals Cesar Rosas – bass, guitar, vocals, guitarron, jarana Alberto Salas – piano, arranger Caetano Veloso – guitar, vocals Conrad Lozano (of Los Lobos) – guitarron Louie Perez (of Los Lobos) Cougar Estrada (of Los Lobos) – percussion, drums Steve Berlin – (of Los Lobos) Producer Rick Clark – Music consultant Dan Goodman – Executive producer Dave McNair – Engineer/mixer Members on Heard It on the X Clarence "Gatemouth" Brown – guitar, vocals Rodney Crowell – vocals Joe Ely – vocals Freddy Fender – vocals John Hiatt – vocals Lyle Lovett – vocals Raul Malo – vocals Ruben Ramos – vocals Delbert McClinton – vocals Rick Trevino – vocals Joey Burns (of Calexico) – nylon-string acoustic guitar, electric bass, upright bass, piano, arranger John Convertino (of Calexico) – drums, percussion Paul Niehaus (of Calexico) – pedal steel guitar, baritone