Alice Cooper invites Johnny Depp on tour

"Johnny came to Hollywood to play guitar. He didn't come as an actor at all. I always say to him, 'If you really want to go out on tour, let me know and you can come with us.' I wouldn't be surprised if he did," he said.

The 64-year-old also talked about fans who cover themselves with Alice tattoos and why rock 'n' roll is crying out for a "shot of testosterone", reported Contactmusic.

"Don't get into wimp rock. Be a rock star. Listen to Iggy And The Stooges, early Who, early Rolling Stones. Bands are so timid. Every time I see a new band I go, 'Why are you so afraid to be a rock star?' Be an obnoxious rock 'n' roller. Get rid of your corduroys," he added.