Jack Osbourne, Daughter Go Undercover at Ozzy Osbourne Horror Nights Maze

Jack Osbourne and his daughter jumped on the loopy prepare to honor Ozzy Osbourne.

Over a yr after the Black Sabbath rocker died on the age of 76, the 40-year-old and his daughter Pearl, 14, went undercover at Common Halloween Horror Nights, scaring followers on the Ozzy Osbourne: Prince of Darkness haunted maze at Common Studios Hollywood.

“I’m Jack, and that is my daughter Pearl,” Jack shared in a joint Instagram video with Hollywood Horror Nights Oct. 3. “We’re getting equipped, and we’re going to be a Prince of Darkness minion in my dad’s maze.”

“It was a promise I made to Pearl,” he continued, “from the second I mentioned we have been doing this [haunted house], fulfilling it.”

As proven within the footage, the previous actuality star—who shares Pearl with ex-wife Lisa Stelly—and the teenager have been remodeled into bloody, bat hybrid creatures, sporting priest costumes, scary make-up and horrifying masks.