Justin Bieber and his camp are not pleased with the mock video James Franco and Ashley Benson did of his hit song Boyfriend because they believe it's proof Ashley cheated on his BFF Ryan Good, Breaking Celebrity News is exclusively reporting.

"Justin was really angry about the video because Ryan was supposed to be Ashley's boyfriend at the time and she's seen crawling all over James," a source close to the situation said.

"To Ryan and Justin, this was proof of infidelity. And they found it really immature that James and Ashley were rubbing it in their faces."

As Breaking Celebrity News previously reported, James portrayed the teen heartthrob in the video dressed in a hoodie and cap lip-syncing to Boyfriend while Ashley donned dark hair and gyrated on top of a mattress.

In October 2012, Breaking Celebrity News exclusively revealed that the Spring Breakers co-stars got cozy on the set, which infuriated Justin's now ex-girlfriend, Selena Gomez, who got Ashley the role in the movie as a favor because she was dating Justin's best friend, Ryan.

"Justin doesn't know exactly when the video was made, but with the reports that James and Ashley were hooking up, he just thought it was really poor taste to throw it in Ryan's face," the insider revealed.

And it seems James heard Justin wasn't happy about it, because he later removed the video and apolo