Nicole Richie

It was a fun, photo-filled week around the world for some of our snap-happy style setters. Poppy Delevingne hit Italy and sported an envy-inducing Chanel snapback, while Nicole Richie and Rosie Huntington-Whiteley stuck to classic bohemian-cool wide-brimmed hats. Cat Deeley may have topped them all, though, getting in full character at a French restaurant by wearing a sleek beret. Coco Rocha and Hilary Rhoda both hung out in NYC, while Emma Roberts kicked it — in a cool '90s grunge look — at Coachella. Emmy Rossum got to "play dress-up" in Jenny Packham's glamorous gowns, and Miranda Kerr posed with a pair of very lucky pilots after a flight to Australia on Qantas Airways.

Click through now to see the rest of this week's cutest celebrity candids, and don't forget to follow POPSUGAR Fashion on Instagram, Facebook, and Twitter!

It was an action-packed week for stars between vacationing on tropical beaches and hitting the red carpet for promotional duties. Jessica Alba and Nicole Richie both donned bikinis for a getaway to St. Barts, while Robert Pattinson and Kristen Stewart shared a sweet sushi date following her 23rd birthday celebrations in LA. Angelina Jolie traveled to London to speak at the G8 Summit, and Bradley Cooper and his new girlfriend, Suki Waterhouse, packed on the PDA during a romantic trip to Paris.

Plenty more went down with celebrities this week, so be sure to click through the rest of the fun shots!

For most snap-happy stars, it was all about getting out and enjoying the sunshine this week! They shared their fun Spring photos on social media for us to enjoy. Jessica Alba and Nicole Richie hung out on the beach during their trip to St. Barts, and Bryan Greenberg showed off his muscles while hiking in Hawaii. Bar Refaeli had fun with pretty flowers, and Julianne Hough spent a day poolside with a group of girlfriends. Channing Tatum was busy promoting White House Down in London, and Kate Hudson was on location for her big return to Glee. Also, you'll definitely want to know what's going down between Jimmy Fallon and the Jonas Brothers!

Click through to see the rest of this week's cutest celebrity candids, and be sure to follow POPSUGAR on Instagram, Facebook, and Twitter!

Nicole Richie left an LA gym yesterday, covering up with a red scarf and black beanie. She wasted no time getting back to her fitness regimen after a stay in St. Barts with Jessica Alba. Jessica and Nicole broke out their bikinis regularly while off celebrating the wedding anniversary of their friends Kelly Sawyer and Jamie Patricof. The fun wrapped up Monday, though, with Jessica, Nicole, and Jess's husband, Cash Warren, arriving back home. Now that Nicole is back in LA, she has more to do than hit the gym. She's back to promoting the second season of Fashion Star, though she still tweeted supporting words about her team on the reality design competition during her adventure in the Caribbean.

Jessica Alba and Nicole Richie wrapped up their stay in St. Barts yesterday and headed to the airport. Jessica wore a sweater and light pants, topped off with a fedora, as she and her husband, Cash Warren, left the island in good spirits. Nicole was solo as she pulled up curbside in a Jeep Wrangler, since her own husband, Joel Madden, was back home in LA with their two kids.

The trip included plenty of time for Nicole and Jessica to wear bikinis as they soaked up the sun at the beach. A fit Jessica was playful with Cash by the surf, while Nicole showed off her beach body as she hung out with other friends. The group journeyed to the Caribbean to celebrate friends Kelly Sawyer and movie producer Jamie Patricof's wedding anniversary last week.

Jessica Alba and Nicole Richie had a bikini beach hangout in St. Barts yesterday. The two stars are spending time in the Caribbean with a group of friends to celebrate pals Kelly Sawyer and movie producer Jamie Patricof's wedding anniversary. The group flew down on Wednesday and have been grabbing all the beach time they can get. Over the weekend, Jessica wore a bikini as she snuggled with husband Cash Warren and did cannonballs off of a barge. Meanwhile, Nicole showed off her bikini body on Saturday when she slipped into a black string two-piece to chat with her girlfriends. Nicole's husband, Joel Madden, didn't make it down to St. Barts for the celebrations, but he did pop up at the Logie Awards in Melbourne on Sunday.