After the Split: Moving On!

SHERYL CROW

Kevin Mazur/WireImage; James Devaney/WireImage

Sheryl Crow, 44, walked tall on the catwalk at a New York Fashion Week charity show (right) on Feb. 3 – the same day she and fiancé Lance Armstrong announced their split. Days later, she attended the Grammys solo (and feasted with Steven Tyler at a Feb. 7 pre-party). "She will be just fine," says pal Natalie Cole. "She is a strong woman."

HEATHER LOCKLEAR

Sunset Photo (2)

Since filing for divorce from Richie Sambora on Feb. 3, Locklear, 44, hasn't been singing the blues. The actress (with 8-year-old daughter Ava on Feb. 12, left; golfing outside L.A. the next day) recently invited some friends over and "they sang karaoke all night," a source tells PEOPLE. "You know somebody's spirits are on the rise when they're able to sing."

SOPHIA BUSH

Stephen Lovekin/WireImage; Arlene Richie/JPI

Sophia Bush (left, in Manhattan on Feb. 7 with One Tree Hill costar Hilarie Burton) still works with ex Chad Michael Murray, but she's moved on romantically: After hitting a Steve Madden event in Las Vegas on Feb. 11 (right), the actress, 23, was spotted smooching actor Nick Stahl at a birthday party that night. "My life is really great," she says.

JESSICA SIMPSON

Tom Vickers/Splash; Denise Truscello/WireImage

Simpson, 25, hasn't slowed down since splitting with Nick Lachey: She recently jetted to Las Vegas to promote her new footwear line (right, on Feb. 10), and started filming Employee of the Month in Santa Fe, N.M. (left, on Feb. 12). And though she's been linked to Maroon 5 frontman Adam Levine, a pal says, "She's not looking to date anyone."

HILARY SWANK

Tom Vickers / Splash; Lester Cohen/WireImage

Swank, 31, and husband Chad Lowe revealed their separation on Jan. 9, but the Oscar winner (left, in L.A. on Feb. 4; right, at the SAG Awards on Jan. 29) isn't giving up on their marriage. "I'm not single," she said at the Golden Globes. "We're trying to work it out." In the meantime, the pair remain partners in their production company, Accomplice Films.

DENISE RICHARDS

Terry/X17 (2)

Richards, mom to daughters Lola, 8 months (in Malibu on Feb. 11, left) and Sam, almost 2, is "staying strong for her daughters' sake" during her divorce from Charlie Sheen, says a source. The actress, 35 (on Feb. 12, right) has leaned on pal Heather Locklear for support, but still, says the source, the split "has been really hard on Denise."

NICOLE RICHIE

Mavrix; Darla Khazei/Pacificcoastnews

Richie (in Beverly Hills, left), who split from fiancé DJ AM in December, has focused on her passions: fashion (she hit a Marc Jacobs show in New York City on Feb. 6, right) and work – she's creating a new series for FOX and will soon start filming The Simple Life 4. "(She's) upbeat as always," says her trainer, Adam Ernster.

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