AnnaLynne McCord

AnnaLynne McCord took a break from shooting 90210 yesterday and headed to the beach for some fun under the sun with her dad, David. AnnaLynne modeled a retro bikini last month, but for her latest romp in the sand she slipped into a tie-dyed two-piece by Bettinis Bikinis. She was one of Winter's hottest bikini-clad stars and it looks like she's looking to secure her sexy status for Spring.

AnnaLynne spent the afternoon working on her tan and chatting with her dad and boyfriend Dominic Purcell, who also stopped by, before she takes off on her latest trip to Africa. The actress is reportedly also heading back to Cambodia to visit the Somaly Mam Foundation, where she's volunteered in the past.

AnnaLynne McCord packed her beach bag and found a quiet spot of sand along the shore in Santa Monica yesterday. The 90210 actress took a break from filming and relaxed under the sun on a warm Winter day. AnnaLynne wore a one-piece on the set recently, but for her latest outing, she chose a floral top and high-waisted navy bottoms. Later in the day, AnnaLynne slipped into a cocktail dress to join up with Jon Hamm, Sophia Bush, and Ali Larter at the Hollywood Dominoes fundraiser. The stars gathered at LA's Sunset Tower Hotel and played parlor games to benefit Paul Haggis's Artists For Peace and Justice organization. New episodes of AnnaLynne's CW show return on March 6, but before then take our 90210 midseason quiz to see how well you've been paying attention to the fourth season.

AnnaLynne McCord donned a swimsuit yesterday for a poolside 90210 scene in LA. Despite the Hollywood location, things seemed to be rather chilly, and AnnaLynne made sure to cover up with her robe between shots. The sight of AnnaLynne in her bathing costume isn't an infrequent one — in September, AnnaLynne wore a white bikini for another afternoon before the cameras. AnnaLynne and her cast-mates are wrapping up a successful 2011 with their series. She's had a highlight in her personal life, too, teaming up with her Officer Down costar Dominic Purcell off screen.

The annual CNN Heroes: An All-Star Tribute event, which honors those making differences in their communities and around the globe, filled LA's Shrine Auditorium with plenty of stars last night. Emma Roberts was on hand to present in a short black Maria Lucia Hohan dress while Sofia Vergara chose dark hued Dolce & Gabbana and Brooklyn Decker went with a metallic Christian Dior number. Miley Cyrus, who performed “The Climb,” arrived in a revealing yellow Roberto Cavalli gown with boyfriend Liam Hemsworth by her side. They weren't the only famous faces to show their support at the event since AnnaLynne McCord, Mary-Louise Parker, Christy Turlington, and others also came out for the show. CNN's own Anderson Cooper has since returned to NYC, but did his part by hosting the evening and wowing a few celebrities like Emma, who twittered that meeting him backstage was a dream come true.

AnnaLynne McCord wore a strapless white bikini, Prada shades, and ballet slippers as she hopped on her beach cruiser in LA yesterday. The 90210 star was off duty during her afternoon in the sun, but she frequently dons a two-piece on the set of her CW show, as well. The series has been taping for much of the Summer, and AnnaLynne has shot several beachside scenes in her swimsuit. Off the set, she and her on-again, off-again flame Kellan Lutz seem to have parted ways after spending much of May together. She was his date to his brother's wedding, and they also made a trip to NYC together just before the start of the Summer, but by July, she seemed to have moved on with a new guy. AnnaLynne and Dominic Purcell were seen cozying up between takes on the 90210 set last month.

AnnaLynne McCord wore a green bikini yesterday to shoot 90210 on Manhattan Beach in California. This season of her hit CW show seems to feature an awful lot of AnnaLynne in her two-piece — this is the third time in the last few weeks we've seen her on set in her swimsuit. The latest day before the camera required AnnaLynne to also wear knee and elbow pads to shoot some sort of Gladiator scene. Off the set, AnnaLynne is keeping company with new guy Dominic Purcell. It was all business for AnnaLynne last Wednesday, though, she and her small screen costars did celebrate their new Fall episodes at the TCA. We'll see AnnaLynne back as her character Naomi Clark when 90210 premieres Sept. 13.

Rachel Bilson and Sarah Michelle Gellar stepped out to celebrate their new TV shows at last night's Showtime, CW, and CBS party for the TCA crowd at The Pagoda in Beverly Hills. Rachel and SMG will both be taking the stage during the press tour today to discuss their pilots, so check out BuzzSugar for all the Fall TV action from the TCA tour. Kristen Bell was also there to promote her upcoming Showtime series House of Lies while Kat Dennings was there for her "edgy" CBS comedy Two Broke Girls. Jason Segel represented the cast of How I Met Your Mother, and he chatted with Buzz about The Muppets Movie, playing a father on the show, and when he'll know it's the right time to leave.

Kim Kardashian was joined by her fiancé, Kris Humphries, last night at the launch party for Noon by Noor in LA's Sunset Tower. The engaged couple are back in LA following an extended stay in NYC, where Kim worked out with Heidi Klum, joined the judging panel for an episode of Project Runway, and hung out with wedding dress guru Vera Wang. They haven't publicly released the date of their upcoming nuptials, but many are speculating Kim and Kris will marry on Aug. 20. The major details are under wraps, but Kim was seen recently leaving a tailor's appointment with an Alexander McQueen bag that could perhaps be a clue to her designer picks. The televised nuptials could even feature a Stevie Wonder performance since Kim and Kris hung with Stevie's wife, Kai Milla Morris, yesterday. One detail that's certain is that Kim and Kris will head to Las Vegas soon for their his and hers bachelor and bachelorette weekends.

There was more AnnaLynne McCord bikini time on the LA set of 90210 yesterday. It was the latest afternoon spent shooting for AnnaLynne, who's working on the series's upcoming season with costars like Shenae Grimes and Jessica Stroup. She seems to have ended her on-again, off-again relationship with Kellan Lutz, and she's taken up with a new guy 18 years her senior. AnnaLynne McCord and Dominic Purcell are dating after meeting on the set of their last movie, Officer Down. He spent time with her between scenes, and they were able to take a PDA-filled stroll. Forty-one-year-old Dominic, a Brit born in London, is best known for his work on Prison Break, and he'll be on the big screen again soon, starring opposite his countrymen Clive Owen and Jason Statham in Killer Elite.