Flo & Eddie is a comedy rock duo consisting of Mark Volman (Flo, short for Phlorescent Leech) and Howard Kaylan (Eddie). The two were the original founding members of the Top 40 mid-to late 1960s rock and pop group The Turtles. After the Turtles dissolved in 1970, Volman and Kaylan first joined Frank Zappa's band The Mothers of Invention as Phlorescent Leech & Eddie. Contractual restrictions imposed early in their career prevented Volman and Kaylan from using the name The Turtles, as well as their own names, in a musical context. History Career beginnings When The Mothers of Invention bandleader Frank Zappa was injured during a concert in London in 1971, Kaylan and Volman found themselves at an impasse, as the group was out of action for a time. They responded to this by recording The Phlorescent Leech & Eddie on Reprise Records with most of the other members of the Mothers of Invention. Although this album failed to chart, the duo continued to release albums, including the more successful Flo & Eddie; Illegal, Immoral and Fattening; Moving Targets; and Rock Steady with Flo & Eddie. 1970s During the 1970s, Kaylan and Volman continued to work as session musicians. They were backing vocalists on the T. Rex 1971 song "Get It On", singing the inadvertent extra chorus that "worked". The duo sang background vocals also on early T. Rex albums and were close friends of the band's vocalist Marc Bolan. The couple was also in good relations with Alice Cooper, and they were the opening act on the "Billion Dollar Babies Tour" during the spring of 1973, going on to record background vocals for Cooper's albums From the Inside, Flush the Fashion and Zipper Catches Skin. The duo was also the house band for the Canadian TV talk show 90 Minutes Live with Peter Gzowski. They also sang background vocals on "Telephone Booth", a 1974 song by Hoyt Axton. Early 1980s The couple sang backing vocals also on Bruce Springsteen's first Top Ten hit on the Billboard chart, the 1980 song "Hungry Heart", while in 1982, they released a four-song EP on Rhino Records (RNEP 603) under the name Checkpoint Charlie. The record is a dark but whimsical take on late 1970s/early 1980s German Synth-pop, New Wave and Techno music, such as D.A.F. and Kraftwerk. Mid-1980s In 1984, as The Turtles... featuring Flo & Eddie (together with three other groups