Harry Styles and rumored girlfriend Kendall Jenner make Simon Cowell 'furious' over alleged Kanye West collaboration and 'Keeping Up with the Kardashians' proposal?

Despite rumors of Harry Styles allegedly flirting with a mystery brunette at a Sundance Film Festival after party earlier this week, it would appear that the One Direction heartthrob is still allegedly dating Kendall Jenner. Though we've heard Kendall's mother Kris Jenner views this relationship as a business opportunity, it looks like Kanye West is also trying to get in on this young romance. According to yet another rumor, Kim Kardashian's fiancé wants the One Direction singer for a new collaboration and Simon Cowell is not happy about that!

"By the end of that evening, Kanye was inviting Harry to come into the studio to lay down some tracks," a source said in regards to these two music giants meeting. "Simon freaked when he heard that!"

Clearly Cowell would be distressed at this collaboration because he's in charge of Harry's musical career. Simon apparently already warned Harry about Kendall's mother, though.

"Simon knows how controlling and manipulative Kris is because he had dealings with her when Khloe Kardashian co-hosted the U.S. X Factor for one season," the insider added. "So when he heard Kris had already asked Harry to appear on the family reality show, he was livid. He told Harry that doing the show would not only be embarrassing, there'd be no benefit to him whatsoever. He's really worried about losing control of Harry. He knows his lead singer's been thinking about a solo career, so the last thing he needs is the Kardashians and Kanye digging their claws into the One Direction star and trying to separate him from the rest of the band - not to mention Simon's record label!' 

What do you think of the latest rumor about Harry and Kendall's relationship? Let us know in the comments section below!