Great Jewish Music: Marc Bolan is a tribute album featuring the music of English singer/songwriter Marc Bolan of the band T.Rex.
 Produced by Danny Cohen, it was released on John Zorn's label Tzadik Records in 1998 as part of their series on "Radical Jewish Culture", following similar prior tributes to Burt Bacharach and .
"Zip Gun Boogie" is a 1974 single, originally credited in the UK as a solo single by Marc Bolan of the British glam rock band T. Rex.
 In other territories, the single was credited to "T. Rex" or "Marc Bolan and T. Rex"; almost all reissues of the track credit it solely to T. Rex.
 The track and its B-side feature on the 1975 T. Rex album Bolan's Zip Gun.
Lajon "LJ" Jermaine Witherspoon (born October 3, 1972) is an American musician best known as the vocalist for the Atlanta-based alternative metal band Sevendust.
Seasons is the fourth studio album by American heavy metal band Sevendust.
 It would be the band's final album with TVT Records and was dedicated to the memory of Reginald Witherspoon (Lajon Witherspoon's younger brother) and Dave Williams (Drowning Pool's original singer), the former was murdered in November 2002 and the latter died of cardiomyopathy in August 2002.
Billy Super Duper is an album by English glam rock act T. Rex.
 Released in 1982 by record label Marc on Wax, it was the first LP of entirely new and unheard material released after Marc Bolan's death in 1977 as the previous posthumous release, "You Scare Me to Death" consisted of demos first released in 1974.
 Billy Super Duper consists of studio outtakes and home demos recorded by the band between 1972 and 1977, with arrangements produced by John and Shan Bramley (the heads of the Marc Bolan Fanclub at the time).
 The album was intended to "complete" the demos and bring them up to date with contemporary music.
Marc Bolan ( ; born Mark Feld; 30 September 1947 – 16 September 1977) was an English singer-songwriter, musician, guitarist, and poet.
 He was best known as the lead singer of the glam rock band T. Rex.
 Bolan was one of the pioneers of the glam rock movement of the 1970s.
 He died at age 29 in a car accident a fortnight before his 30th birthday.
Windstorm is the fourth studio album released by Gloria Jones in 1978.
 This album was a dedication to Marc Bolan, as on the rear cover, is written: "Special Dedication in memory of my son's father, the late Marc Bolan, whom we miss very much."
Paul Fenton (born 4 July 1946 in Huddersfield, Yorkshire, England) is an English drummer, best known for his work with T. Rex.
 After leaving Christie, he started playing drums for T. Rex in 1973, after being recommended to Marc Bolan by his producer Tony Visconti.
 He also toured briefly with Marc Bolan & T. Rex in 1974, and played additional drums with Davy Lutton on the songs "Solid Baby", "Funky London Childhood", and "Visions Of Domino".
Sevendust is an American alternative metal band from Atlanta, Georgia, formed in 1994 by bassist Vince Hornsby, drummer Morgan Rose and guitarist John Connolly.
 After their first demo, lead vocalist Lajon Witherspoon and guitarist Clint Lowery joined the group.
 Following a few name changes, the members settled on the name Sevendust and released their self-titled debut album on April 15, 1997.
 They have attained success with three consecutive RIAA gold certified albums and have sold millions of albums worldwide.
"Angel's Son" is a song written by Mikey Doling, Clint Lowery, Morgan Rose, Lajon Witherspoon of Sevendust and performed by Witherspoon and two fellow Sevendust members (drummer Morgan Rose and guitarist/vocalist Clint Lowery) and ex-Snot band member (now ex-Sevendust guitarist) Sonny Mayo, for the post-mortem compilation CD in honor of James Lynn Strait known as "Strait Up".
 This was the only single track from the tribute album.

Question: Have singers Lajon Witherspoon and Marc Bolan both been members of a band?
Answer: yes