Marilyn Manson and Shia LaBeouf are BFFs -- who knew?

The Transformers star took his new girlfriend, Karolyn Pho, to a special screening of Manson's new music video (directed by LaBeouf), "Born Villain", at Hennessey + Ingalls bookstore in LA, on Thursday.

Shia and Marilyn met at a Kills concert, where LaBeouf, a longtime Manson fan, approached the controversial singer and struck up a conversation that sparked a life-long friendship.

LaBeouf told MTV News on his BFF: "Marilyn Manson to me is an indelible figure. He's a big deal to me, and in my childhood, I don't know of a scarier figure in art. He, in my teenage years, was the scariest thing in the world, so part of me has always been intrigued."

We KNOW he's got a sexy, ripped physique, so why on earth would Shia LaBeouf cover himself up with oversize gym clothes? The combination of the frumpy XL shorts and baggy tee aren't doing him any favors...

Apparently Shia LaBeouf and Frankie Muniz have been quarreling like a bunch of hormonal 8th grade girls for the past decade, and back in 2003, Shia told Entertainment Weekly, "I used to see [Frankie] at premieres and stuff and it would always be like he was looking down on me, and then it turned into we're equal, and then it turned into 'Oh Frankie, I know that guy."

Flash forward seven years to Shia chatting about his life and success on on Q100's The Bert Show in Atlanta, and when asked about the fact that the last of his six movies have opening in first place, the Transformers and Indiana Jones star said, "While that's flattering as hell, you could have put Frankie Muniz into any the movies I've been in and those movies would have still been number one." The radio host continued to egg him on, asking what he would say if Frankie if he approached him at a party. "I don't go to many parties and I don't really hang out in Frank Muniz-type zones," LaBeouf replied. Ouch!

So what did Muniz, who has since retired from acting, have to say? He tweeted, "Dear Shia Labeouf. It's getting creepy the fact that you can't stop talking about me. It's been 12 years now. I don't know you. Thanks."

This totes reminds us of Hilary Duff and Lindsay Lohan's squabble over Aaron Carter! Well, kinda.

Anne Hathaway and Shia LeBeouf top Forbes' annual list of "Hollywood's Best Actors For The Buck", the ones who earn the most for what they're paid.

Shia LeBeouf came in number one, thanks to Transformers: Revenge of the Fallen which brought in $836 million worldwide, and Indiana Jones and the Kingdom of the Crystal Skull which earned $787 million worldwide. Shia brought in $81 for every $1 he was paid.

In second, was Anne Hathaway, mostly due to her appearance in the $1 billion-grossing Alice in Wonderland and Bride Wars, which brought in $115 million. Hathaway's movies earn her employers $64 in profit for each $1 she earns.

Other celebs who hit the top five are Daniel Radcliffe ($61 in profit for each $1 paid), Robert Downey Jr. ($33) and Cate Blanchett ($27).

Topping the worst for the buck list is Will Ferrell, who was paid $1 for every $3.29 his movies made.

Money Never Sleeps, the long-awaited sequel to the 1987 film Wall Street premiered in Cannes today to mostly positive reviews.

The film's stars Shia LeBeouf, Michael Douglas and Carey Mulligan were joined by director Oliver Stone and the rest of the cast on the red carpet.

Oliver Stone's sequel features Michael Douglas reprising his role as "greed is good" Gordon Gekko, who must fight his way back to the top of Wall Street after spending 8 years in jail and weathering the financial crisis.

Megan Fox is hard at work back on the set of Transformers 2 with her co-star Shia LaBeouf, proving to the world (and her director), that she eats!

And it's a good thing she's staying healthy - with all the action we're sure T2 is gonna pack, she's gonna need all the energy she can get!

The movie almost 20 years in the making finally premiered at Cannes last night, to mostly positive reviews!

The movie's stars, Harrison Ford and Cate Blanchett, walked the red carpet for the opening night of Cannes, as well as the first public showing of the film's fourth installment.

Harrison looked hot for 65 in his tux - course having Calista looking gorge (for the first time in a long time!) on his arm doesn't help either, as the star joined co-stars Cate Blanchett (gorgeous in grey Armani) and Shia LaBeouf, Natalie Portman in Chanel, Salma Hayek (who's losing a lash!) Steven Spielberg and Kate Capshaw, George Lucas and Mellody Hobson.

We've got more red carpet stars (and wannabes) coming up, so stay tuned!

We've got even more of your favorite stars from the 2008 Nickelodeon Kids' Choice Awards! Who was the best dressed? The worst?

We'd love to hear your thoughts!