Celebrity Star Tracks - Monday, March 26, 2007 By People Staff Published on March 26, 2007 05:10 PM Share Tweet Pin Email Trending Videos 01 of 15 G'DAY, L.A. Flynet After a recent visit to his native Australia, Keith Urban reunites with wife Nicole Kidman over lunch in Los Angeles on Sunday. Later, the couple attended the L.A. premiere of Distracted, a play starring Rita Wilson. Click here to see more photos, news and a full bio of Keith Urban 02 of 15 SWEET DUET Henry Flores/Buzz Foto Jessica Simpson gets a handle on John Mayer after lunching at Hugo's in West Hollywood on Saturday. The inseparable duo have been spotted all over L.A. recently, attending concerts together. See more photos, news and a full bio of Jessica Simpson 03 of 15 SHADY LADY Cousart-Respicio-Rilloraza/ JFX Continuing her busy weekend, Britney Spears leaves a Beverly Hills restaurant on Sunday after lunching with pals. Later, the singer paid a visit to a Los Angeles hospital to see a dentist. But it was nothing serious, says her rep: "At worst, it's a toothache." 04 of 15 GOING PUBLIC inf Earlier, Britney Spears steps out to attend a dance class at the Millennium Dance Complex in North Hollywood on Saturday. The pop star, who had been laying low since checking out of rehab, stopped by the studio Friday night to take an advanced hip-hop class. See more photos, news and a full bio of Britney Spears 05 of 15 BIRTHDAY BLOWOUT HotShotsWorldwide/Splash News Meanwhile, Spears's ex Kevin Federline gets ready to celebrate his birthday (he turned 29 on March 21) at Las Vegas's Pure Nightclub on Saturday. Federline, who made the trip with the couple's children, Sean Preston, 1, and Jayden James, 6 months, rang in his birthday with family, friends and ex-girlfriend Shar Jackson. 06 of 15 THE SLEEVED ONE Norbert Kesten / Rex Jennifer Lopez continues showing off her taste for avant-garde fashion, attending Germany's Echo Awards in Berlin on Sunday in a one-sleeved cocktail mini by Lanvin. See more photos, news and a full bio of Jennifer Lopez 07 of 15 THEY'VE GOT THE LOOK Ronald Asadorian/ Splash News Less than two months after his divorce from Pam Anderson, Kid Rock looks to have formed a new bond with Danish model May Andersen, as the two enjoy a Saturday stroll in New York. The following evening, the pair rocked out at Elton John's 60th birthday concert at Madison Square Garden. 08 of 15 PLEASE STAND UP Ronald Asadorian/Splash News Elton John and husband David Furnish demonstrate how an equal partnership works before heading to John's 60th birthday concert at Madison Square Garden on Sunday. The singer, who was also celebrating his record-breaking 60th performance at the famed arena, told the crowd of 20,000 fans, "The only place I wanna be [on my birthday] is Madison Square Garden." 09 of 15 CROSS PROMOTION Joshua Gunter/The Plain Dealer/AP Halle Berry is perfectly poised to meet some hometown fans in Cleveland, Ohio, as she continues promoting her new thriller Perfect Stranger on Thursday. Before the screening, the Oscar winner told the audience: "I'm so happy to be home. I'm of here. I'm from here. And I'm one of you." See more photos, news and a full bio of Halle Berry 10 of 15 MAKING GOOD LDP images/ E News Buzz It's thumbs up Down Under for Keith Urban, who moves along with his promotional tour in Sydney on Friday. The country star performed an intimate concert at the Metro Theatre after canceling an appearance there in the fall when he went to rehab. See more photos, news and a full bio of Keith Urban 11 of 15 FEELING BLUE? Flynet Queen Latifah takes in the oceanside view as she wraps up her vacation in Maui, Hawaii, on Thursday. The singer-actress is due back to work in April on the crime caper Mad Money, which costars Katie Holmes. 12 of 15 SUGAR RUSH MJ Kim/Getty From peddling sneakers one day to chocoholic the next: Mischa Barton, who is London promoting Keds' spring line, stops by the Children's Cancer Charity's annual Chocolate Ball at the Dorchester hotel on Friday. See more photos, news and a full bio of Mischa Barton 13 of 15 LAST ACTION HERO Flynet Sylvester Stallone recharges for his fourth outing as war hero John Rambo in Bangkok, Thailand, on Thursday. The action star recently got on the wrong side of the law when he brought human growth hormones into Australia. 14 of 15 GLAM ROCKER Mohammed Salem/Reuters/Landov Shakira sparkles onstage during a stop in Dubai on her Oral Fixation tour Friday. The singer, who is performing for the first time in the Middle East, greeted reporters before the show with a mixture of English, Spanish and some Arabic. "This is my first time in Dubai," she told the press. "I'm very excited. We're all very excited, me and the band." 15 of 15 MIX MEDIA Seth Browarnik/WireImage Crunk master Lil' Jon gets the skinny on Star Jones's new gig at Court TV at the 22nd annual Winter Music Conference at Miami Beach's Vida Tequila Lounge on Thursday.