Johnny Depp fans were in for a treat when the actor made a surprise appearance on stage with Alice Cooper, Belfast Telegraph said.
The Pirates Of The Caribbean actor - a keen guitar player - joined the rock star on stage at the Orpheum Theatre in Los Angeles and the pair played several covers, including The Beatles' Revolution and Foxy Lady by Jimi Hendrix.
A source told People: "Johnny was in great spirits. He was really happy and at ease, especially on stage with the rest of the band."
The star, who recently split from long-time partner Vanessa Paradis, attended the concert by himself.
Johnny has played the guitar on many songs, including Oasis' Fade In-Out, and has appeared in videos for songs such as The Lemonheads' It's A Shame About Ray and Into The Great Wide Open by Tom Petty And The Heartbreakers.