Johnny Depp made a surprise appearance during an Alice Cooper show, and the two performed a classic Black Sabbath song in honor of Ozzy Osbourne.

Johnny Depp playing with Alice Cooper and his band in London on Friday. Getty Images© Getty Images Ozzy Osbourne, seen here performing at his last concert earlier this month, died on Tuesday.

Johnny Depp is known for committing to his roles. But in 2003, he even composed the theme music for this movie from Robert Rodriguez.

Johnny Depp made a surprise appearance on Friday, joining Alice Cooper at his concert in London, honoring Ozzy Osbourne with a song just days after his death.