updated 04/06/2009 AT 01:00 AM EDT
•originally published 04/06/2009 AT 01:00 AM EDT
LeAnn Rimes & Dean Sheremet
MARRIAGE UNDER ATTACK
Proving there might really be a "seven-year itch," LEANN RIMES, 26, and DEAN SHEREMET, 28—whose seventh anniversary was Feb. 23—are now fighting a magazine report that she is having an affair with EDDIE CIBRIAN, 35, her costar in the Lifetime movie Northern Lights. The singer, who hasn't denied the allegations, wrote on her Web site March 18, "This is a difficult time for me and my loved ones." (That day Sheremet wrote on Twitter, "I love my wife!!!") A Rimes pal says the marriage has been on shaky ground for a while. "There have been issues brewing for months prior to meeting Eddie on-set," says the source. "They've gone to therapy." Rimes and Sheremet were photographed kissing in L.A. March 22, but the pal says their future together is unclear: "They're figuring it out."
Rihanna & Chris Brown
THIS WEEK'S FAQ
What's the latest on the legal front?
Brown, facing two felony charges stemming from his allegedly violent fight Feb. 8 with Rihanna, is expected in court April 6 to enter a plea—unless a plea bargain is negotiated first.
Are they still together?
"They haven't broken up, but they're taking a break," says a source, adding that the couple saw each other in Los Angeles three days in a row before Brown headed home to Virginia March 18. Meanwhile, there is Rihanna backlash in her native Barbados, where some schools are publicly burning her CDs.
Is there a sex tape?
Recent reports that the couple filmed themselves having sex—and are now afraid the raunchy tape could be leaked—are false, says a source: "There are no sex tapes."
Kirsten & Josh
Love On Show!
Kirsten Dunst, 26, and Josh Hartnett, 30, are at it again. The costars of 1999's The Virgin Suicides, who have been spotted together over the years, spent the evening at New York City's Beatrice Inn on March 21 dancing together—and making out. Afterwards the lovebirds and a group of friends headed back to Hartnett's loft, where Dunst playfully sat on his lap and locked lips with the hunky actor.
IS NICOLE EXPECTING TWINS?
According to one report, Nicole Richie, 27—who announced in February that she's pregnant—is expecting twins. Joel Madden, 30, Richie's beau and father of their daughter Harlow, says otherwise. "It's not true," he told Scoop at a UNICEF event in N.Y.C. March 19. And the Good Charlotte lead vocalist's twin brother and bandmate Benji chimed in, joking, "And I'm the second man to become pregnant!"
THE HILLS NEWS
LAUREN CONRAD CLOTHING LINE ON HOLD
The upcoming fifth season of The Hills is Conrad's last, but she won't necessarily be spending more time on her fashion collection: "Lauren's line is on hiatus until she reworks it but will definitely return for future seasons," her rep tells Scoop.
WHITNEY PORT NEW MAN
Following her split from beau Jay Lyon on The Hills spinoff The City, Port, 24, was spotted making out in Miami with Lipstick Jungle's Robert Buckley, 27, on March 18.
AUDRINA PATRIDGE NEW SHOW
"It will show people a different side of my life," Patridge says of the upcoming reality series.
MY OTHER HALF'S CANADIAN!
Whether they're married, engaged or just dating, a whole crop of love-struck celebs have found romance north of the border!
VINCE VAUGHN, 39, & KYLA WEBER, 29
"Kyla's a really low-key girl—she's very sweet," a source says of the Alberta Realtor, who recently got engaged to Vaughn.
HILARY DUFF, 21, & MIKE COMRIE, 28
Dating the Edmonton-born hockey player for two years, Duff told Regina's Leader-Post in 2007, "I love Canada. I feel like people there really, really support me."
SCARLETT JOHNSON, 24, & RYAN REYNOLDS, 32
She joked to ET Canada that as the wife of a Canadian, "I'll be able to get through immigrtion faster now!"
CARRIE UNDERWOOD, 26, & MIKE FISHER, 28
She likes to root for her Ontario-born NHL beau: "I'm kind of new to hockey," she told The Ottawa Sun in March, "but I love cheering on my favorite team!"
COCKTAILS AT CONFEDERACY
Hipsters hit Hollywood for Confederacy's Eric Ray Davidson: The New York Times Photo Diary party March 20. The new chic clothing boutique is co-owned by That '70s Show's Danny Masterson, who deejayed the bash while his fiancée Bijou Phillips showed off her engagement ring to squealing gal pals. Wilmer Valderrama arrived with a posse of guys, Eva Mendes mugged for photos, and Jessica Alba and Liv Tyler shared mom updates.
• 3/21, Miami: The Hills' Lo Bosworth hit the Sierra Mist Ruby Splash bash at the Fontainebleau Hotel. • 3/21, L.A.: The 90210 wrap party was at Coco de Ville. The guys played Nintendo Wii. Earlier, AnnaLynne McCord and show veteran Shannen Doherty went to the launch of Naturally Victoria's Secret Beauty.
TORI AND DEAN'S LITTLE LIAM TURNS 2
Liam McDermott missed his party the week before due to a fever, but loved his March 22 Cars-themed to-do at home with entertainment by The Jumpitz.
FLAVOR FLAV'S BIG 5-0
The reality star and rapper turned 50 in style March 20 at Las Vegas's Jet nightclub. Flav clowned around for the crowd and hopped on the mic shouting his signature, "Yeah, boy!" Surrounded by go-go dancers, he celebrated until 3 a.m.
Desperate Housewives costar Ricardo Antonio Chavira joined Eva Longoria Parker at her L.A. restaurant Beso March 16 for her b-day. Absent husband Tony Parker was in a basketball game.
5 Questions for ...
The former Gilmore Girl sings the praises of her toe-tapping role in Guys and Dolls, which has turned out to be a real workout!
1 Has it been easy channelling your inner showgirl?
I haven't danced at a wedding in years, and I certainly haven't stripped in public before! It's really hard, but it's really fun.
2 Dancing or singing: Which makes you more nervous?
Neither! Every night before I go out, I get a little adrenaline rush.
3 Have you changed your diet for the role?
I drink a lot more water. I never really feel like eating a big meal. This has been an accidental diet.
4 Have you received any advice from any Broadway alumni?
Megan Mullally, who did Young Frankenstein, said, "You might get to a Pilates class, but other than that you're not going to get anything done." It's all about the show.
5 What's your upcoming as-yet-untitled ABC comedy about?
I'm a self-help expert who is kind of a mess. These projects are happening at the same time, so it's a lot of logistics, but I feel proud.