Lindsay Lohan

Kate Bosworth arrived in a colorful Missoni top and debuted her newly dip-dyed tips at last night's sold-out Coldplay concert at UCLA. She's the latest star to experiment with unexpected hair color following Lauren Conrad's pre-Fourth of July red, blond, and blue look. It seems Kate's found a new pal to join her at shows since she and Alexander Skarsgard recently announced their split. Lindsay Lohan was also in the crowd joined by her younger sister, Ali. Coldplay put on a 90-minute performance to benefit the Grammy Foundation's Grammy in the Schools music program. Chris Martin and his bandmates filled the set with their popular anthems "Viva La Vida" and "Yellow" as well as new songs like "Charlie Brown" and "Every Teardrop" from their forthcoming album. Coldplay capped off the show with a touching tribute to Amy Winehouse, breaking into a haunting rendition of "Rehab" during their three-song encore. Gwyneth Paltrow wasn't in the audience for last night's show, but she may be able to meet up with Chris tomorrow in Chicago, where the band is headlining the annual Lollapalooza music festival.

It's Lindsay Lohan's 25th birthday! She's had a bumpy year legally, but now it's time for Lindsay to celebrate her big day, especially since she was just released from house arrest. Lindsay's apparently heading to the Hamptons, where she may soak up the sun in a two-piece when she's not partying. We're getting the bash going with a look at Lindsay's hot bikini moments on her milestone birthday!

Lindsay Lohan cooled off in the Atlantic Ocean yesterday while decked out in a blue bikini. She dried off afterward with a towel, though she smudged a temporary tattoo on her arm that consisted of the word "blood." A photo shoot brought Lindsay to Miami, but the actress has had time to enjoy both the sunshine and a Miami Heat basketball game. Her legal woes still may await her back in LA, but for now LL is focused on work and figuring out how to win that Oscar by age 30.

Lindsay Lohan threw on a bikini yesterday to lounge by a pool in Miami. She headed to Florida over the weekend to participate in a photo shoot that saw the actress try on other swimsuits and dresses on the top of a building in the city. She's throwing herself into work for magazines and film, and Lindsay's apparently most excited about trying to get a role in a Carrie remake. She also recently participated in an interview back in LA, revealing that she's single at the moment and open to dating guys or girls. Lindsay wrapped up her days in the Sunshine State by taking in a Heat basketball game last night, and she went on Twitter to say she wished her brothers were there to share in the fun of watching from a private box.

Jake Gyllenhaal and Michelle Monaghan laughed, smiled, and cuddled close as they posed together at their Source Code screening afterpary in NYC last night. The two are in their home stretch of promoting the film stateside, and it arrives in theaters today — check out Buzz's rave review here. Lindsay Lohan hit the red carpet at the event after a wild evening out in the city on Wednesday, though she insists that falling in the street was all a joke. Perhaps she was getting in the April Fools' Day spirit early? Jake had a big smile on his face for all the photos and his sweet charm was front and center earlier in the day when he was caught in the middle of Carrie Ann Inaba's engagement surprise.