Matt Damon was a surprise front-row guest seated next to his wife, Luciana, at today's Naeem Khan Fashion Week presentation. Matt wasn't the only Hollywood star under the tent as The Help's Ahna O'Reilly, GCB's Kristin Chenoweth, and Top Chef host Padma Lakshmi were also spotted checking out the stunning designs on the runway.

Matt and Lucy seemed to be enjoying a very romantic Valentine's Day together, which is one of the reasons they're constantly on our list of loved-up celebrity couples. Matt and Lucy don't need a holiday to share their PDA — in fact, the duo couldn't keep their hands off each other during Lisa Snowdon's 40th birthday celebration in London last month.

Angelina Jolie and Brad Pitt celebrated a very special Valentine's Day in Sarajevo tonight at a screening of In the Land of Blood and Honey. Brad and Angelina arrived in Bosnia earlier in the day, fresh off a layover in Berlin where she was honored last night with the Cinema For Peace award. The pair are back together after being apart while he traveled to London on Sunday for the BAFTA Awards. Brad didn't take home a new trophy, though he did get to hang out with fellow nominee and close friend George Clooney.

The Jolie-Pitts are traveling without their six children at the moment; however, Brad says the kids love joining them on the road. During his recent taping of Inside the Actors Studio, Brad talked about traveling as a family and that each person is responsible for packing their own bag. Award season will bring Brad and Angelina back to LA soon enough for the Feb. 26 Oscar ceremony, where he is among the leading men in contention for this year's best actor statue.

Victoria Beckham wore Roland Mouret to hit Miu Miu's NYC boutique earlier today for a Valentine's Day shopping spree. She's been in the Big Apple since late last week prepping for two Fashion Week presentations. Some major stars stepped out to see her signature label, the Victoria Beckham Collection's Fall 2012 designs on the catwalk Sunday, including her biggest fans, David and Harper Beckham. Tomorrow she'll showcase her more affordable pieces. She'll send her Victoria by Victoria Beckham frocks down the runway, and it appears Posh is eager to get a jump on the unveiling as she tweeted a photo of a new print called "Frockerella" today.

Natalie Portman and Dakota Fanning posed together before taking their front-row seats at Rodarte's NY Fashion Week presentation this afternoon. Also on hand to see Rodarte's 2012 collection were Maria Sharapova and George Lucas. Natalie's back home on the East Coast after a stint in LA, where she attended the SAG Awards and the Golden Globes. Last year, Natalie was a big award season winner for Black Swan, and she's finally lining up her first post-Oscar projects. Apparently, Natalie's involved in two Terrence Malick movies, Knight of the Cups and Lawless, which will film this Summer and Fall.

Kate Middleton, the Duchess of Cambridge, was in Liverpool today for her second-ever day of official appearances on her own. She started things off with a visit to the alcohol-free bar The Brink, where she sampled a honey and almond smoothie christened "The Duchess" in her honor. Kate was next off to the Alder Hey Children’s hospital, where she met with young patients in the oncology section. She watched as they made Valentine's cards, some of which featured pictures of the royal couple! Kate actually visited the facility last February as well with Prince William by her side. At the moment, however, William is across the Atlantic stationed in the Falklands. He's into his second week of a month-and-a-half-long deployment with a Royal Air Force search and rescue squad.

Kate's schedule isn't slowing down any time soon. Her next outing will be on Feb. 21 at the charity The Art Room, and the first week of March will see her attending events alongside her grandmother-in-law, Queen Elizabeth, and stepmother-in-law Camilla, Duchess of Cornwall.