UNDATED (AP) — Alice Cooper and Aerosmith guitarist Joe Perry are making good for all the hearing they’ve blown out over the years. Cooper and Perry, along with Johnny Depp, helped fit customized hearing devices for 218 residents of Rio de Janeiro at the Rock in Rio music festival on Thursday. Perry says the impact on the lives of the children who now can hear is “astounding.” Cooper jokes maybe the people who can now hear should start listening to music that’s a little lighter and work up to his music. The Starkey Hearing Foundation sponsored the hearing devices. Cooper, Perry and Depp performed as Hollywood Vampires at Rock in Rio.