Celebrity Stars' Summer Lovin' Check out the hottest celebrity romances of the season (including The O.C.'s Mischa Barton and beau Brandon Davis). By Serena Kappes with Laura J. Downey By People Staff Published on August 24, 2004 02:00 PM Share Tweet Pin Email Trending Videos 01 of 08 MISCHA BARTON & BRANDON DAVIS Alex Berliner/BEI O.C. star Barton, 18, and twentysomething billionaire heir Davis (at the opening of the Beverly Hills Prada store) have been an item since meeting at a charity event in February, but being in a high-profile relationship isn't easy, says Barton: "Every week there is something new that comes up (in the tabloids)." 02 of 08 HALLE BERRY & MICHAEL EALY Splash Berry, 38, and Ealy, 31 (in Hollywood in July), met on the set of their upcoming TV movie Their Eyes Were Watching God and have been keeping an eye on each other ever since, going to brunch, the beach and spending Berry's Aug. 14 birthday together by going to a movie and a comedy show in L.A. 03 of 08 AVRIL LAVIGNE & DERYCK WHIBLEY Westley Hargrave /Splash Lavigne, 19, and Sum 41 frontman Whibley, 24, gave photographers an eyeful kissing and canoodling poolside at the Beverly Hills Hotel in June. Though neither of the Canadian pop stars has commented on their connection, their chemistry is clear. 04 of 08 SCARLETT JOHANSSON & JARED LETO Adam Nemser/Photolink Johansson, 19, and Leto, 32 (in New York on Aug. 7), have been spending plenty of time together of late. At a recent "Un-Birthday" party the actress threw for herself and a friend in London, a pal told PEOPLE the pair was inseparable: "She was sitting on his lap. They were kissing a lot." 05 of 08 LINDSAY LOHAN & WILMER VALDERRAMA LDP Images Lohan, 18, wasn't about to make the first move with That 70s Show's Valderrama, 24: "A girl should never do that," says the Mean Girls star (cuddling with her man in Miami). It wasn't until Lohan's 18th birthday bash on July 2 at the Hollywood nightclub Avalon that the couple, first spotted together in May, went public with their romance. 06 of 08 MICHELLE WILLIAMS & HEATH LEDGER LDP Images Though she doesn't play Ledger's love interest in their upcoming film Brokeback Mountain (Jake Gyllenhaal gets that honor), former Dawson's Creek star Williams, 23, clearly made an impression on Naomi Watts's ex-beau, 25 (away from the movie's set in Calgary, Canada). 07 of 08 LARA FLYNN BOYLE & JARON LOWENSTEIN Flynet With Jack Nicholson and automotive empire heir Jay Penske no longer in the picture, Boyle, 34, seems to have found a new love interest in singer Lowenstein, 30, half of the pop duo Evan amp Jaron. On Aug. 6 (left), Boyle gave the "Crazy for This Girl" singer a warm welcome when she picked him up at the Los Angeles International Airport. 08 of 08 CLAIRE DANES & BILLY CRUDUP Susan Miller/StarTraks Crudup, 36, split in November with longtime girlfriend Mary-Louise Parker (with whom he has a 7-month-old son, William) amid accusations that he left her for his Stage Beauty costar Danes, 25. Putting their gossip-column start behind them, the pair has been spotted nuzzling all over New York City this summer.