The original members were: Roger Troutman, Larry Troutman, Lester Troutman, Terry Troutman (Zapp), Gregory Jackson, Bobby Glover, Jannetta Boyce, Sherman Fleetwood, Jerome Derrickson, Eddie Barber and Michael Warren. Upon the release of the hit single "More Bounce to the Ounce" Roger formed a new band. Bootsy and George were instrumental in securing a record deal for Roger and Zapp with Warner Brothers Records in late 1979.
Bootsy introduced Roger to the public during the Parliament Motor Booty Affair tour of 1979. True to his word, Bootsy brought Roger to the attention of Parliament-Funkadelic leader George Clinton. Roger was also childhood friends with Cincinnati native Bootsy Collins, who made a pact with Roger that whoever became famous first would reach back to help the other.
Larry was then the road manager and the leader of the group in terms of all major decisions and connections. Larry eventually joined his brothers when their name became Roger and the Human Body, which also included youngest brother Terry and Gregory Jackson. The duo of Lester and Roger started several groups including Little Roger and the Vels. The nucleus of Zapp circled around two of the five Troutman brothers: Lester and Roger. Known for hits such as "More Bounce to the Ounce", "Dance Floor" and "Computer Love", the group was a partial source of inspiration to West Coast hip-hop and G-funk, which came out of the hand clapped-drum beat styled funk of Zapp's records, with Roger's use of the talk box becoming another reason for the group's impact and its success. Zapp (also known as the Zapp Band or Zapp and Roger) is a soul and funk band formed in 1978 by brothers Roger Troutman, Larry Troutman, Lester Troutman, Tony Troutman and Terry "Zapp" Troutman.