Zapp (also known as the Zapp Band, Zapp & Roger) 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—and non-Troutman family members Bobby Glover, Gregory Jackson, Sherman Fleetwood, Jerome Derrickson, Eddie Barber and Jannetta Boyce. 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.