Credit: James Devaney/; Michael Buckner/; Jeff Vespa/

No surprise here: Heidi Bivens is on Team Angelina!

The pretty celeb stylist was thrust into the spotlight last spring when Justin Theroux abruptly ended their 14-year relationship (they lived together) and embarked on a high-profile romance with Wanderlust costar Jennifer Aniston.

Bivens made a rare red carpet appearance recently at the premiere of the film Here at the CORE: Club in NYC -- and had high praise for Angelina Jolie, who's been with Aniston's ex-husband Brad Pitt for seven years.

"I was super-impressed by Angelina's dress for the Golden Globes," Bivens told Us Weekly of the superstar's jaw-dropping look at the Jan. 15 awards fest in Beverly Hills. With Pitt at her side, the actress and In the Land of Blood and Honey director, 36, stunned in a champagne satin one-shoulder Atelier Versace gown with a hint of red at the neckline.

With her naturally brunette hair in a blonde bob, Bivens wore a black ballerina sweater and black dress at the premiere, and also praised the Globes looks of Natalie Portman ("stunning!"), Laura Dern ("she's a dear friend…she knows what works for her body) and Tilda Swinton ("she always looks like a million bucks!").

When asked about her increased profile in the press thanks to her 40-year-old ex's talked-about love life, Bivens demurred to comment. "There's nothing to say," she told Us. "I'm very content being behind the scenes and I hope to continue to do good work that people know me for and that it's about the work."

Insiders told Us that Aniston, 42, pursued Theroux in fall 2010 on the set of Wanderlust despite his long-term relationship with Bivens. "Jen wanted Justin and it didn't matter that he was already with someone," a source said.

Added a Bivens insider last spring: "It sucks when your ex dates the most famous woman in the world so soon after a breakup."