Jennifer Aniston and Brooklyn Decker have been busy promoting their latest romantic comedy Just Go With It, wearing fabulous fashion every step of the way. While Jen usually dominates the red carpet with effortless ease, the Sports Illustrated bikini model has been giving Jen a little fashionable and friendly competition.

PHOTOS: Just Go With It Style Showdown!  Brooklyn Decker Vs. Jennifer Aniston

At the NYC premiere Jen showed off her famous figure in a sexy Dolce & Gabbana strapless gown, which featured a sexy slit and also clung to her body in all the right places.  Brook also rocked D&G, in the form of a sizzling skintight leopard dress, which she paired with burgundy Brian Atwood Maniac pumps.

Click Here To See Jen Take On Brooklyn In NYC

Over in Berlin, Brooklyn had spring in her step, wearing a lilac hued Max Mara gown, which featured a high slit, while Jen opted for a one-shoulder ruffle Nina Ricci mini.

Click Here to See Who Scored The Top Style Honors In Berlin

And in Madrid on Monday, Jen debuted a new, shorter do, wearing a black tank and slacks, while Brooklyn looked like she just stepped off the runway of London Fashion Week in Burberry.

Click Here To See Who Hit The High Note A La Mode In Madrid

See Jen and Brooklyn battle it out on at all of their Just Go With It events by clicking here.

Jennifer Aniston just turned 42, and to celebrate, the birthday girl debuted a sexy new 'do at the Madrid, Spain premiere of her new film Just Go With It on Tuesday, and RadarOnline.com has the pictures for you.

PHOTOS: Jen Debuts Shorter, Sassy New 'Do

The 'do is a bit shorter and sassier than we're used to, and the Friends star looks great with it.

Adam Sandler and Jennifer Aniston just barely held off Justin Bieber at the box office this weekend, and RadarOnline.com has the numbers.

PHOTOS: Jen Aniston Through The Years

The Biebs' 3-D teen classic-in-the-making, Justin Bieber: Never Say Never, pulled in an estimated $30.2 million in ticket sales.  Sandler, with the help of Aniston, Brooklyn Decker and Nicole Kidman, just edged him out with an estimated $31 million for Just Go With It.

PHOTOS:  Justin Bieber & Selena Gomez Heat Up The Beach

The Elton John-produced family-friendly animated flick, Gnomeo & Juliet, came in third with $25 million in ticket sales.

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Two unlikely forces in Hollywood converged Tuesday, when A-list actress Jennifer Aniston met reality TV star Tila Tequila in a skit orchestrated by Zach Galifianakis on his web series, Between Two Ferns, for FunnyOrDie.com.

Watch the video on RadarOnline.com (Caution: contains adult humor)

In the segment, Aniston came out to a pathetic version of the Friends theme, and seemed awkward and disoriented by the vibe in the room. Galifianakis introduced Tila to Aniston as the star of a reality dating show.

Jennifer Aniston -- who strikes a racy post in the new issue of Allure magazine -- says she hated the "Rachel," the 90s hairstyle she popularized on the NBC hit Friends, calling it the "ugliest haircut I've ever seen."

PHOTOS: Jennifer Aniston In Allure Magazine

Aniston said her hairstylist pal Chris McMillan conceived the 'do in 1994. Of course, in just a few short years, salons from coast to coast would be filled with women looked to get their hair coiffed in the style the trend-setting actress had popularized during her must-see TV days.

Watch-out James Cameron, Clint Eastwood and Steven Spielberg! Former reality TV goofball Spencer Pratt has released the trailer for his first 'feature' film Tower 69: Malibu Beach Patrol.

But unlike Cameron and Company, Pratt’s Baywatch style spoof (assuming this isn't another 'Spencer prank' ) doesn’t boast big name stars like Angelina Jolie or Leonardo DiCaprio. Instead, he’s gone for a bunch of his pals, and given the lead role to his bodyguard Cougar Zank.

PHOTOS: Spencer Pratt -- Clean Cut & Hangin' With Heidi