“Robert Pattinson Is Going To Be On Entourage!” exclaims a giddy Perez Hilton.

After providing a “SPOILER ALERT,” the blogger announces, “There is a BIG surprise in store for Twilight fans – Robert Pattinson is slated to guest star!”

According to Hilton and other outlets, “Robert Pattinson guest stars as Ari’s most difficult client ever” on the episode airing this Sunday, September 12.

“Can RPatz handle ‘comedy’?” Hilton wonders.

Well, we know Pattinson can do comedy, ever since we saw him “bothered” in a tree with Jimmy Fallon last spring.

But here’s Gossip Cop’s spoiler: Perez Hilton does comedy, too, albeit unintentional.

Robert Pattinson is NOT going to do a cameo on “Entourage.”

A source close to the star tells Gossip Cop exclusively that it’s “not true.”

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It’s not totally confirmed yet. We will keep checking out imdb.com, tvguide.com, etc. when further word comes out about this particular episode.

According to TV@Spreadit.org:

Entourage season 7 episode 10 called “Lose Yourself” which was directed by David Nutter and written by Doug Ellin did not air this evening on HBO but will be broadcast on September 12, 2010.

As you eagerly wait for Entourage’s heated finale which will explain how the friends end up losing all they have worked for – here is the preview of the upcoming installment:

Mrs. Ari is still fuming over Ari’s angry meltdown the night before, Ari tries desperately to keep her surprise party on track. The guys attempt to stage an intervention for Vince, who has gone off the deep end. Turtle scrambles to find investors to save the tequila business. Eric receives an unexpected request from Terrance McQuewick, which leads him to consider Scott’s business proposal. Robert Pattinson guest stars as Ari’s most difficult client ever.

And From eWorldPost.com:

There are more reasons for a person to tune into HBO on the 12th September. Apart for the usual crew of the show that has amused the people over a long time, a surprise is expected. It is surprising but true that in this episode, the star of the Twilight Saga, Robert Pattinson will make a guest appearance.

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