Zapp is an American funk band that emerged from Dayton, Ohio, United States, in 1977. Particularly influential in the electro subgenre of funk, Zapp were known for their trademark use of the talk-box effect. The original line-up consisted of four Troutman brothers—frontman Roger, Larry, Lester and Terry—first cousin, Sherman Fleetwood—and non-Troutman family members Bobby Glover, Gregory Jackson, Jerome Derrickson, Eddie Barber, Jannetta Boyce and Shirley Murdock. Zapp also worked closely with George Clinton and Bootsy Collins of Parliament-Funkadelic during its early stages, their support being a factor in the group gaining a record deal with Warner Bros. Records in 1979.