jackson vs bieber.jpgThe King of Pop has been dethroned at the U.S. box office by teen pop star Justin Bieber.

Repprts say “Never Say Never” beat out Michael Jackson’s “This Is It” to become the most successful concert-themed movie ever, grossing $72.2 million domestically, $100,000 more than MJ’s flick.

“PROUD of #NEVERSAYNEVER3D and grateful 2 the fans 4 making it the #1 grossing concert doc of ALL TIME!! MJ is still the greatest! #HONORED,” Bieber tweeted on Monday.

But the “Baby” singer — who called the news “CRAZY!!” — made sure his fans knew he wasn’t disrespecting the late “Thriller” singer.

“MJ is still and always will be the KING OF POP! and worldwide we got a long way to go. #MJtheGreatestEVER #SHOWRESPECTTOTHEKINGOFPOP.”

But MJ’s final concert movie, which was released after his death in 2009, still holds the worldwide box-office record, having earned US$189.1 million overseas.

“Never Say Never” has grossed a mere US$10.8 million internationally, but Bieber is not greedy.

“…but regardless thank you thank you thank you to all those that did and are continuing to support #NSN3D around the world,” he tweeted.