Serena Williams' BATHROOM
Professional tennis star
"I love taking baths," says Williams, 29, who, when remodeling her L.A.-area home, made sure to go all out on the bathroom. "I wanted it to be big. I wanted a claw-foot tub, and I designed the bay windows around the tub to accentuate it. It really makes the room."
Jeremy Renner's HOME BAR
Academy Award-nominated actor
The bar opens early in the Renner household. "I'm there every morning with a cup of coffee, reading the news," he says. And at night? "When people are over, I go down the row to catch up with friends-'What's up? What can I make you?' It's a lovely place to be."
AnnaLynne McCord's BEDROOM
Star of the CW's 90210
"Everything I need is in my bedroom," says McCord, 23. That includes a refrigerator, a fireplace and her "big comfy bed." Although she's a proud bargain hunter, there's one thing she won't skimp on: "I splurge on my sheets. They're the softest in the world!"
Boris Kodjoe's HOME OFFICE
Star of NBC secret agent drama Undercovers
Manhattan Beach, Calif.
"It's really cozy in there," says Kodjoe, 37. And the room's placement off the master bedroom means he can study scripts late at night and still be close to his wife, actress Nicole Ari Parker. "She can lie in bed and then come visit me in the office-it's nice."
Haylie Duff's DRESSING ROOM
Actress and sister of Hilary
"I wanted my dressing room to feel like you were inside a Tiffany gift box," says Duff, 25, who painted the space herself and then added some shimmery touches. "I love the mirrored furniture because it feels really feminine," she says. "And I love the Venetian mirrors on the wall-they don't match, but they go perfectly together."
Emily Procter's LIVING ROOMS
Star of CSI: Miami
"I love a good old-fashioned formal living room-that's going back to my southern roots," says the North Carolina native and avid interior designer, 41. And the yellow room "is the room that is most like me-there's no need to apologize if I want a red sofa next to a turquoise chest."
Get the Look
Haylie Duff's MIRROR
Venetian Glass Mirror, $189; wisteria.com
Jeremy Renner's MONKEY POSTER
Vintage Liquore da Dessert Drunk Monkey Poster (24" x 36"), $6.80; amazon.com
Emily Procter's BENCH
Balboa Bench, $149-199; grandinroad.com
AnnaLynne McCord's THROW
Sheepskin Rug Single in Ivory, $100; uggaustralia.com
Boris Kodjoe's GLOBE
Replogle "Orion" Globe, $94.99; replogleglobes.com for stores