We know that some actors get the big head pretty fast, but managers? It was just last week that reality star Heidi Montag hired Malibu psychic Aiden Chase to be her manager, replacing husband Spencer Pratt. Things were looking up for Heidi, as she landed a cameo in the comedy “Just Go With It,” starring Adam Sandler, Jennifer Aniston and Nicole Kidman.

But a source reports the actress was “horrified” when Chase showed up on set, “demanding a significant portion of her ‘Hills’ money.” Obviously, Heidi was signed to do the MTV series long before she met Chase. Now Heidi has fired Chase, and a source dished to US magazine: “The guy thinks he’s famous now — it’s ridiculous. He’s referring to himself as the most famous psychic in the world.” At least Heidi still has Spencer!

Stephanie Seymour was one of the hottest models of the 90s—she dated Warren Beatty and Axl Rose! Stephanie seems to have settled down since then, but still shows supermodel form as she plays in the surf at St. Barts with her kids, wearing a black bikini.

At the tender age of 15, Angelina Jolie was already a sultry beauty who knew how to vamp it up for the camera! Now 20-year-old shots of the actress taken by famed celebrity photographer Harry Langdon are up for auction at profilesinhistory.com, with bidding starting at $400- 600. These photos are actually pretty tame compared to some we’ve seen of current teen stars, but they do give a hint of what’s ahead for the stunning Angelina.

Ageless actress Demi Moore graces the cover of the new issue of Harper’s Bazaar, and reveals how se fell hard and fast for her much-younger husband Ashton Kutcher. “I knew it had the potential to be something special right away. It was like meeting somebody that I’ve just known where you just recognize one another. It was so disproportionate, the level of emotion we were experiencing to the time we had spent together. But when you don’t know someone, you can’t just jump and say ‘I love you.’ “Nice to meet you, I love you!” Yeah. No. We used to end our calls or e-mails with ‘And everything we don’t say.’” These two obviously have some heavy duty chemistry going to keep them together this long!

Fans of former Playmate Kendra Wilkinson will be disappointed to learn that the new mother is through taking it all off. She’s been keeping pretty busy with foorballer hubby Hank Baskett, baby Hank and getting back into shape for her E! TV show. Kendra told RadarOnline, “No, I think my Playboy days are done. I’m a mother now. Of course I’m not going to quit my whole life but my Playboy days are done. Time to move on and be a mom, that’s my focus!” Too bad—Kendra’s one hot mama!

“American Idol” judge Kara DioGuardi surprised us with a peek at her well-toned bod in a bikini during the finale last season. Now the almost-40 songwriter shows more in Women’s Health magazine. Kara says her secrets to keeping fit are exercise, a healthy diet and lots of water. Whatever she’s doing, it’s working!

Supermodel Heidi Klum did some very revealing shots for the April issue of Allure, and she attributes her fantastic looks to sun protection, exercise and milk! But the “Project Runway” host obviously has luck (and great genes) on her side, since she says. “I didn’t get stretch marks during my pregnancies, and I wasn’t even moisturizing myself like a maniac.”

Izzie Stevens has been AWOL for most of the current season of “Grey’s Anatomy” while Katherine Heigl took yet another hiatus from the series to shoot a film and take care of her newly-adopted baby. The actress was expected to return to the set this month, but so far, has not reported for work. It’s no secret that Heigl has been trying to get out of her contract ever since her film career took off a couple of years ago. Sources report that she has finally gotten her wish and will not return to “Grey’s.” So how will the show’s producers explain her absence? Since Izzie has cancer already, it shouldn’t be that hard.

Supermodel and new mom Gisele Bundchen looks fabulous on the cover of the April issue of Vogue! She shows off her hot bod as well as her precious baby boy, Benjamin Rein Brady. The busy mom refuses to hire a nanny, saying “I don’t trust anyone else with Benjamin.” Who could blame her?

Those “Jersey Shore” kids are learning fast. Jenni “JWOWW” Farley was spotted multi-tasking in L.A. over the weekend, hosting the Muscle Milk/Springbreakitdown.com party at Hollywood’s Hotel Roosevelt and pitching her upcoming fashion line, which she described as “very rock and roll, sexy edgy.” As long as she’s doing while wearing a teeny Ed Hardy bikini, we’re listening!