Russell Brand filed for divorce from his wife, Katy Perry, earlier today. There have been rumors of trouble brewing between the pair, but earlier this month Russell revealed to Ellen DeGeneres, "I am really happily married." Since then it seems there's been a change of heart by Russell who spent Christmas in the UK with family while Katy partied in Hawaii with friends. Click through to see some of Katy and Russell's most loving moments and happier times.

Good-looking couple Jason Statham and Rosie Huntington-Whiteley cozied up under the palm trees in sunny Miami Beach earlier today. Rosie soaked up the rays in a floral bikini top and striped bottoms while Jason kept his six-pack abs under wraps. Jason and Rosie were among the hot couples sharing the most memorable PDA moments in 2011 and it looks like they're heading into another year full of love, hugs, and kisses. Last year the pair celebrated New Year's Eve in St. Barts with pal Alessandra Ambrosio so we'll have to wait and see where they ring in 2012 tomorrow night.

Miley Cyrus wore a bright, strapless bikini in Hawaii yesterday as she and Liam Hemsworth spent some time on the beach. The couple are in the islands after marking the holidays with their families, and during their day by the water, the pair were also seen playfully snapping some photos — Liam even stripped off his shirt for Miley's lens! Miley looked relaxed as she and Liam lounged in the sun, despite tweeting about her fear of flying as they set off for their vacation.

Miley and Liam have been dating off-and-on since teaming up on the movie The Last Song. Miley has been focusing mostly on her music career since then, going on a major tour this Summer and recording several new songs this year, but she'll make her return to film soon. Last month, it was announced that Miley will be a voice in the upcoming animated movie Hotel Transylvania, playing the daughter of Adam Sandler's character. In the meantime, Liam is gearing up for a milestone big-screen moment of his own, with the highly anticipated adaptation of The Hunger Games hitting theaters in just a few short months.

A pregnant Jennifer Garner toted her Celine bag and her youngest daughter, Seraphina, on her hip as she stopped by an LA nail salon today. Jennifer showered her little girl with kisses and the two shared a few secrets as they headed to the spa. The mother and daughter frequently team up to run errands together, but yesterday, Jennifer and Ben Affleck fit in some alone time as they headed out on a walk. Ben is back in town with his girls for the holidays after keeping busy with work on his latest directorial project Argo for much of the year. On Christmas Eve, Jennifer, Ben, Sera, and Violet all did a little last-minute shopping together, and the family is in store for a big gift ahead in 2012, when Jennifer gives birth to her third child. Jennifer recently opened up to InStyle about her family life and her pregnancy, admitting she gives in to cravings like nacho-cheese Doritos when she's expecting!

Britney Spears and Jason Trawick stopped at a convenience story in NYC today, and Britney's sparkling engagement ring was in view as they left holding hands. Jason proposed to Britney on Dec. 15, just a few days before they headed to Vegas to celebrate his 40th birthday. The happy pair showed off Britney's Neil Lane stunner during their stay in Sin City, posing for pictures at a party they hosted at Planet Hollywood.

The trip to Nevada was one of many the duo took together in 2011. Jason was close by Britney's side for most of the year, along with her sons, Sean Preston and Jayden James, as she toured the world. She closed her Femme Fatale concert series in Puerto Rico on Dec. 12, and her boys, Jason, and her mother joined her on stage for the last song in the final show. Jason waited until the family was back in LA before popping the question, however, and Britney quickly hinted at their exciting news on Twitter before the duo officially confirmed their plans to wed.

Kate Middleton bundled up in a furry coat, stayed casual in jeans, and kept her feet dry with green Wellington boots that matched those of her brother-in-law, Prince Harry, to watch her husband, Prince William, play a game of soccer on Christmas Eve. The boots, which William, Kate, and her sister, Pippa Middleton, have been spotted wearing previously for walks and hunting trips, are apparently made by Le Chameau — buy them here — and lined with leather. The Duke and Duchess of Cambridge were in Sandringham with the royal family for their first Christmas together as newlyweds. Kate and William attended Christmas services in the town, where they were greeted by a crowd of well-wishers on the holiday. 2011 has been an amazing year for Prince William and Kate Middleton, but the start of 2012 will have them apart for a couple of months as part of his military service.

Jason Sudeikis returned home to Kansas over the holidays and brought along a special guest, girlfriend Olivia Wilde. Jason and Olivia cheered on the KU Jayhawks last night as the team crushed their opponents, Howard, in an 89-34 victory. The pair mingled with the hometown crowd and wore matching blue and white KU hats.

Olivia and Jason were first linked as a couple earlier this month when she accompanied him to an SNL afterparty at NYC's Loi. It looks like Jason and Olivia are ending 2011 on a high note, and the next year already looks promising for both actors. She's starring in multiple projects including The Words with Bradley Cooper and Zoe Saldana. Meanwhile, Jason returns to his reoccurring role on SNL and also joins Will Ferrell, Zach Galifianakis, and Dan Aykroyd on the big screen in the upcoming political comedy Dog Fight.

Pregnant Alessandra Ambrosio was back on the beach in Brazil yesterday showing off her baby bump in a bright, yellow bikini. The supermodel announced she's expecting her second in the Spring, and shared a photo of her growing belly on Facebook. Alessandra is no stranger to wearing sexy outfits, and was one of the lucky Victoria's Secret Angels chosen to walk the runway in this year's holiday show. We'll have to wait and see if she joins her fellow Angels Miranda Kerr, Erin Heatherton, and Karli Kloss in February to shoot the retailer's upcoming Summer catalog.

Jessica Alba took a dip in the pool during her Cabo vacation this week. Jessica wore a bikini, showing off her fit postbaby body, for the swim and shaded her face with a hat. She had daughters Honor and Haven as well as husband Cash Warren by her side for the sunny afternoon of fun, which continued yesterday. Jessica covered up in a maxi dress and hung out under an umbrella with her youngest child. The whole Alba-Warren foursome made the trip to Mexico on Tuesday after celebrating Christmas at home with family and friends. They're just one of many famous faces spending the extended holiday south of the border, including George Clooney and his girlfriend, Stacy Keibler, and Cindy Crawford and Rande Gerber.