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MELANIE'S LIVING ROOM
"When I walked in, I couldn't believe it. It was beautiful," Griffith tells PEOPLE of her modern New York City spread. During her recent renovation, the actress decided to go with a color palette of black and red because "it's elegant and wild at the same time. It's got more pizzazz." But don't expect the room to stay the same for long – it sounds like she has a few more ideas. "I don't think it's completely finished yet," she shares, "but it's a happy place."
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Want to drink wine inside, but with the feeling of a cool breeze? The Entertainment Tonight co-host solves that problem with her cozy space. "I wanted to make the outdoors feel like an indoor room," she tells PEOPLE. O'Dell also uses the room to tap into her creative side, as she's "constantly changing the pillows on the chairs and the chaise lounge," she admits. "I'm a little nutty over pillows."
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Who says the color blue is only for boys? Not this former 7th Heaven star! When decorating now-15-month-old daughter Kenzie's nursery, she kept her husband Michael Cameron in mind when choosing the aqua decor. "I love that it is so tranquil and serene and I also wanted Michael to be comfortable in the room and not overwhelmed by pink," she tells PEOPLE. "I wanted something that was more neutral and calming."
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The host of The Bachelor has to have the best bachelor pad in town, right? The four-bedroom Westlake Village, California, hideaway, complete with stunning views, an expansive deck and (of course) a hot tub, "is rustic and comfortable," Harrison says. "I didn't use a professional designer. Everything has meaning to me." Hanging out by the fire with a bottle of wine? Sign us up.
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50 CENT'S LIVING ROOM
"This is the East Coast Playboy Mansion," says Jackson of his 50,000-sq.-ft Connecticut mansion (formerly owned by Mike Tyson), which houses a strip club, indoor nightclub and grotto. He made sure to keep his family in mind when designing rooms like the formal living room, referred to by the rapper as "my grandmother's room. When she'd come here, that would be where she'd want to stop and sit. The only picture in there is of me and her."
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"I love my home," Smith says of her Los Angeles abode, which she's lived in since 1991. The former Charlie's Angels star continues to decorate her space, admitting that she has "so many favorite pieces" of art hanging on the walls, and that from every trip she takes, she brings home a memento to display. "If I look around here I see a lot of me."
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A personal concert from Connick, Jr. himself? Only in this den! "One of my daughters had some girlfriends over the other night, and they wanted me to play 'Don't Stop Believin' by Journey," says the star, who played the tune on this Steinway piano, a gift from his wife, Jill Goodacre, for his 30th birthday. The den also has a drop-down TV screen and storage for the family's board games. "We like the fact that it's a pretty laid-back life here in Connecticut. We can just be home. There's no scene."
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It's no surprise that Von Teese's bedroom is filled with glamorous antiques, vintage collectibles and fur-trimmed pillows. "People always say, 'Oh, she lives in another era,' but it's not true. I just love to be surrounded by things of glamour and beauty," the burlesque dancer and designer, whose Hollywood home includes classic pin-up art and paper on nearly every wall, tells PEOPLE. "I can't stand modern, white interiors. IKEA is my worst nightmare!"
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Don't make a mess in this room! The all-white kitchen (even the knives and scissors are white!) helps Food Network star Lee feel some calm after a crazy day. "Our days are so cluttered with stuff we have to do – chores, homework and work – so I try to keep the kitchen as uncluttered as possible," she tells PEOPLE about her favorite spot, where she cooks with her boyfriend, New York governor Andrew Cuomo, and his two daughters.
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"I take a bath at least once a week," Conrad says of how she likes to unwind in her renovated Laguna Beach house. "I wanted a romantic feeling in my bathroom," she adds of her favorite room, from where she can smell the salt water in the air.
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"I cocoon in here when I'm home. It's a place to relax," Lady Antebellum's lone female singer says of her favorite room in her renovated 1920s bungalow in Nashville. "I'll come in and literally fall backwards on the bed, legs and arms out, like how little kids make snow angels. I make a bed angel."
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SIMON'S LIVING ROOM
"I am literally obsessed by the way things look," Cowell says of his rented home in L.A., which boasts clean lines, a modern sensibility and comfort. But "I've thrown out more sofas than you could ever believe because they're uncomfortable."
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A man who's handsome and handy? That's Switched at Birth star Marini, who built the backyard daybed in his family's four-bedroom Studio City, California, home – a birthday present to his wife Carole – in just four hours. Now the spot is his "little resort escape in the middle of L.A.," he says.
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HAYLIE'S DRESSING ROOM
Also taking the DIY approach: Hilary Duff's big sister Haylie, who picked up a brush and painted her space a dreamy blue. "I wanted my dressing room to feel like you were inside a Tiffany gift box," she tells PEOPLE of the space's shimmery touches, like mismatched Venetian mirrors and reflective furniture, which go "perfectly together."
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JEREMY'S HOME BAR
Next round is on him! Renner spends his mornings reading the news over coffee at his quaint home bar, and at night, plays bartender to his visiting pals. "I go down the row to catch up with friends," the American Hustle star says. "'What's up? What can I make you?'"
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This is where the (culinary) magic happens! King chose to create a year-round sunny spot in her kitchen drenched in her favorite hue. "It's impossible to be surrounded by yellow and not feel good," Oprah's BFF says of her bright space, which features an oversized antique clock. "It makes me smile every time I walk into the room."
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After all those red carpet appearances, where does Patridge kick up her tired feet? In her "very feminine" yet "luxurious and almost royal" slumber room, which boasts regal purple walls with cream accents. "It's cozy and comfortable," says the reality star.
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What's more relaxing than a luxurious bubble bath? Nothing, according to tennis champ Williams, whose love of baths was at the top of her mind when she remodeled her master bathroom. "I designed the bay windows around the tub to accentuate it," she says of the room's centerpiece. "It really makes the room."
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CHERYL'S LIVING ROOM
The Dancing with the Stars pro's airy living room in her Hollywood Hills home doubles as a dance space, where she choreographs many of her routines. "It's nicer than renting a studio," Burke says of her place, where she also entertains her fellow DWTS pals with karaoke, barbecues and, of course, dancing!
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"Maybe it's because I'm a chef, but parties always start in my kitchen," Stone tells PEOPLE. His roomy cooking space includes a special pantry for his ice cream maker and pasta machine and a bookshelf to hold cookbooks. "You want to have all your references close at hand," he says.