The "New York Post" claims "X Factor" has dumped KHLOE KARDASHIAN, who hosted Season Two alongside MARIO LOPEZ.

A so-called "insider" says Mario was asked to come back for Season Three, but Khloe wasn't.

Khloe hasn't commented . . . and a spokesperson for "X Factor" would only say that no talent decisions have been made for the upcoming season.

Lookin' Good Prince!

But not the Prince we usually talk about - we're talking about Prince Michael Jackson!

MICHAEL JACKSON'S oldest son, 16-year-old PRINCE MICHAEL, has lined up a gig as a "special correspondent" for "Entertainment Tonight".   

Prince Michael made his debut on last night's episode.  His first task is to cover the upcoming movie, "Oz the Great and Powerful", which has some significance to him since his dad played the Scarecrow in "The Wiz".

What are his goals?  He says, quote, "I'm looking to become well-rounded as a producer, director, screenwriter and actor."

TAYLOR SWIFT is being sued?!?!

Yep, by a Canadian ticket company for KEEPING the $2.5 million they paid her in advance even though the concert was cancelled and she never performed. 

This was the "Capital Hoedown" and it was supposed happen last August in Ottawa, Canada.

Taylor is actually being sued for $1.8 million because that's what the ticket company had to hand out in refunds.  So even if Taylor DID fork that over, she would still walk away with some $700,000.

Taylor's people are sounding like weasels about it.  A rep told TMZ that their deal was not with the ticket company  . . . so she's not responsible for the refunds.  They also claim they have not yet seen the lawsuit.