Original members of the bands Sha Na Na and The Drifters urged New Jersey lawmakers Monday to penalize impostors who perform in Atlantic City and elsewhere while posing as members of famous oldies bands.

“In a sophisticated form of identity theft, impostor groups are duping consumers and stealing the names, the remuneration and the legacy of the pioneers of rock ‘n’ roll,” Jon Bauman, formerly “Bowzer” of Sha Na Na, told legislators.