Jennifer Aniston was honored with the Decade of Hotness award at tonight's Spike TV Guys Choice Awards in LA. The actress lived up to her hot title, stepping onto the stage in a short black minidress. She was presented with the golden mantlers by her Horrible Bosses costars Jason Bateman, Charlie Day, and Jason Sudeikis, but it was her yoga teacher Mandy Ingber that she thanked for keeping her sexy bod in shape. Jen's been hanging out on the West Coast for the past few weeks and has been spotted enjoying the company of her rumored boyfriend and Wanderlust costar Justin Thereaux. Including Jen, tonight's event brought out tons of A-listers like Cameron Diaz, Justin Timberlake, and Scarlett Johansson, and also included a surprise appearance from Ben Affleck — stay tuned for more photos from us and be sure to tune in when the show airs on Spike TV June 10.

Robert Pattinson wore his favorite baseball hat and held on to a small carry-on making his way through LAX today. The Twilight star is in Hollywood readying for tomorrow night's MTV Movie Awards, where he's expected to reveal the first full-length trailer for Breaking Dawn with costars Kristen Stewart and Taylor Lautner. We got a sneak peek of Edward and Bella's wedding scene last week, and hopefully we'll finally get a glimpse of the couple's sexy honeymoon. Rob's been in Canada for the past week filming Cosmopolis and sweetly posing for photos with his adoring fans. There's a good chance his fans voted for Rob and Kristen to win the best kiss category at this year's awards, but we'll have to wait and see if they pull off a three-peat — join us tomorrow where we'll be streaming live coverage from the red carpet at the MTV Movie Awards!

Kate Middleton looked stunning in a ladylike skirt, blazer, and fascinator alongside her top-hat-wearing husband, Prince William, at the Epsom Derby in Epsom, England, today. The Duke and Duchess of Cambridge were joined by much of his family, including brother Prince Harry, the Queen, and cousins Princess Beatrice and Princess Eugenie. Kate's parents James and Carole Middleton also joined in the festivities. Prince William and Kate Middleton grace the June VF cover and recently revealed the plans for their upcoming North America trip. Kate will reportedly bring a number of outfit changes for every day, which she will select herself. Her gorgeous hair was pinned back for this afternoon's outing, and the family cheered on the Queen's horse, Carlton House, who came in third. Earlier this week, it was Prince William himself atop a horse for a polo match in Chester.

Pippa Middleton ran her heart out at the end of a triathlon in Woodstock, England, today. She collected her medal and chatted with her pals after crossing the finish line. It isn't her first time competing in the GE Blenheim Triathlon, and the impressive feat of athleticism is just part of how Pippa tones that very famous backside. While she was having a very fit morning, much of her family, including parents James and Carole, sister Kate Middleton, and Prince William, were at the races to watch the Epsom Derby. It's hard to imagine that Pippa had much time to train for this event, since she was busy with her sister's royal wedding and has since been getting back to work. She also took a trip to the French Open with friends, where her style and love life were once again the center of attention.

Stars enjoyed the long Memorial Day weekend with trips to the beach and days off! Audrina Patridge was off on a bikini-filled vacation, as Katie Holmes and Suri Cruise had fun in the sand. Victoria Beckham showed off her baby bump at her son's soccer practice, while Robert Pattinson logged time on set in Canada. That's not all that happened as they geared up for the MTV Movie Awards tomorrow, so click through to see all the best pictures and most exciting stories this week!

Salma Hayek made her way from Venice to Paris in time to take in the French Open yesterday with her husband, Francois-Henri Pinault, and famous friends like Bradley Cooper and Lukas Haas. Salma, Francois-Henri, and their daughter Valentina were in Italy earlier this week for the Biennale art show, while Bradley has been abroad promoting the European release of The Hangover Part II. The comedy broke records by raking in more than $118 million over the long Memorial Day weekend back in the States. He kicked things off with the LA premiere before hitting the red carpet in Berlin and, last weekend, he showed off his French-speaking skills during another interview. He seemed to be solo at the afternoon's events, but Bradley and Olivia Wilde reportedly continue to heat up. The actors both split from their significant others in March, with Bradley and Renée Zellweger parting ways and Olivia filing for divorce from her husband of eight years.

Jennifer Garner and Violet Affleck visited a friend's house in Pasadena yesterday. They picked up their pals and headed to the Huntington Botanical Gardens, where they checked out the grounds from the back of a golf cart. Jennifer's youngest daughter, Seraphina, wasn't along for the trip but Violet represented her sibling by wearing a shirt that said "Seraphina's Big Sister" in rhinestones. Jennifer and Violet have been a busy duo all week, first picking up books at an LA library and later attending a block party in the company of dad, Ben. Ben was sporting a black eye on the occasion, though the cause of his injury is unknown. He's been prepping for work on Argo, but for now he seems to be enjoying his downtime with his girls.

Mark Wahlberg and Rhea Durham held hands as they left lunch at LA's Il Pastaio on Thursday. They were then off to the Westfield Center to shop with their young son Brandon. The Wahlberg family is prepping for a big birthday celebration this weekend, since Mark turns 40 on Sunday! He's home to mark the milestone with his wife and kids after spending the past few weeks in Boston with Mila Kunis on the set of their dark comedy Ted. Mila's the latest on Mark's long list of A-list costars, and his next partner may be a surprising one — he's apparently teaming up with Justin Bieber for an untitled basketball drama. Happy early birthday Mark!

Josh Hartnett and Sophia Lie took a stroll on the streets of NYC's West Village on Thursday. The couple met up with friends at Imperial Woodpecker, which serves up New Orleans style snow cones, before going their separate ways. Josh and Sophia have been spotted out multiple times lately, with the duo enjoying a walk together and attending a fashionable bash last week. Their relationship seems to be going strong though Josh has also been out and about without his girlfriend. He grabbed lunch with friends on Tuesday and stepped out solo for a movie screening on Wednesday.