The Baby hitmaker is seen performing the British rocker’s 1980 hit Crazy Train in the clip.
He even wears rings similar to Ozzy as he rocks out on the stage.
A huge variety of big-named stars appear on the LL Cool J fronted show, including Jennifer Lopez, Anna Kendrick and Mike Tyson.
Anne Hathaway is also seen hilariously pretending to be Miley Cyrus, and even swears at her good friend and Devil Wears Prada co-star Emily Blunt.
Justin has been attempting something of a public relations turnaround in recent months.
Following years of legal troubles ranging from egg-throwing to speeding, he has been seen trying to win over the public.
He even took part in a Comedy Central roast where everything from his relationship with Selena Gomez to his bratty behaviour were discussed.
The likes of Martha Stewart and Ludacris took part, but one man who didn’t want Seth Rogen.
Bieber repeatedly tried to get Seth – who has previously called out his behaviour publically – involved, but he wouldn’t turn up for the roast.
©OK Magazine