Alice Cooper rocked the legendary 100 Club in London Sunday night.

"It's been a while since we played such an intimate venue, but strip away the theatrics and we are a pedal-to-the-metal rock band, born in clubs like the 100 Club,” Alice said prior to the show. “We play every show like that anyway, and it will be fantastic to reconnect in that atmosphere. This show comes with a health warning — 'We don't do acoustic, this will be loud."

The 200 tickets for this rare, intimate club show sold out immediately. Fans were treated to a 17-song set full of surprises, including covers by many of the UK giants who played the club in their formative years: The Beatles, The Rolling Stones, The Kinks, The Animals, and a Yardbirds classic was thrown in to boot.

There was a buzz in the air about a special guest for the show, which was played up all day Sunday by Alice’s Facebook team, who posted teasers about who the guest might be.

Turns out the guest was actor Johnny Depp, currently in England filming Tim Burton's "Dark Shadows." Depp strapped on his guitar and joined Cooper and crew for “I’m Eighteen” and “School’s Out.”

Depp had pursued a career as a musician before he became a full-time actor in the 1980s; he also famously once co-owned Los Angeles’ Viper Room club.