The holiday season is in full swing, and for some of our favorite celebrities, celebrating this joyful time of year comes with plenty of sparkle and sentiment. And like most things in Hollywood, the holidays are all about creating magic - often on a grand scale. From fabulous traditions out West - like Mariah Carey's annual Christmas celebrations in Aspen - to lavish décor and over-the-top party gift bags boasting Baccarat crystal ornaments, plus nostalgic rituals passed down for generations, Hollywood's biggest names are proving there's no single way to make the season magical. Kathy Hilton transforms her home into a festive wonderland, while stars like Mariah Carey and Chrissy Teigen and John Legend create unforgettable memories through travel and cherished traditions. Whether it's cozy nights, glittering gatherings or family-first festivities, these stars remind Us that holiday magic comes in many forms. Continue scrolling for celebrities' traditions, decorating and fashion tips, plus expert advice on becoming the ultimate party host: Glitz, Garlands and Good Cheer When it comes to Christmas entertaining, Kathy Hilton doesn't just deck the halls - she transforms them into a full-on holiday wonderland. The self-styled "Mrs. Claus," known also for her dramatic drop-ins on the Real Housewives of Beverly Hills, is throwing not one but four lavish fêtes this season, complete with a Moët & Chandon champagne vending machine and coveted gift bags that have included luxe Baccarat crystal ornaments in past years. So when Us scored an invite to Hilton's annual holiday pajama party - cohosted with daughter Nicky Hilton Rothschild and QVC - we jumped at the chance to pick up some next-level entertaining tips. Wearing cheerful blue toile pajamas from her new Printfresh x Kathy Hilton Collection, she says the secret to setting the mood is all about ambience. "To make people feel warm and good, start with low lighting and scented candles," Hilton tells Us. "You can walk into the most gorgeous house, but if it's too bright and you don't smell anything or see a flower, it's like, 'Oh, God, who lives here? What is this?'" Next, she says, comes the fun stuff - signature drinks and small bites. Her go-to lineup includes a vodka and-fruit cocktail called the Hunky Dory, a festive pomegranate "pomtini" for teetotalers, comforting mini chicken pot pies and indulgent desserts that keep visitors mingling. While her guest list can number over 500 and often includes a who's who of Bravolebrities, Hilton insists that personal connection is key. "Make sure to introduce your friends to other friends so no one feels left out," she advises. "You might say, 'You should meet so-and-so - they love poodles, you have a poodle!' Before you know it, they're exchanging numbers and getting together." As for Hilton, "I'm like a bunny," she adds with a laugh. "I hop around, enjoy different personalities, and I really like people." Still, Hilton admits her favorite part might come at the tail end of the festivities. "I love planning - the table, the flowers, making everything beautiful - more than I do the first few hours of the party," she says. "Once it settles down, I can finally relax, have a glass of wine and just chat." Deck the Halls, Mowry-Style! Home Goods It's been more than a decade since Tia and Tamera Mowry worked together. But this holiday season, the former child stars have reunited for a HomeGoods campaign celebrating yuletide decorators everywhere. And they say the partnership couldn't be more them. "We're both huge fans of HomeGoods - and to do something together again after so long makes it extra special," Tamera tells Us. "We love Christmas- and we're early decorators!" she adds with a laugh. The Sister, Sister alums both go all out, but their styles couldn't be more different. "I'm definitely the traditional one," says Tamera, who leans into classic plaids, rich reds and woodsy textures. "I'm all about the cozy, timeless vibe." Tia, on the other hand, goes for what she calls winter whimsy. "I love sparkle, icy blues and a little bit of glam. During the holidays, you can just be extra - I say, sparkle, baby!" For both sisters, who each have two young children, decorating isn't just about aesthetics - it's about slowing down and being present. "Life gets busy with work, school, everything. But decorating brings everyone together," explains Tia. "Everyone's focused on one thing: creating something beautiful together. We're sipping hot cocoa, listening to Boyz II Men - it's magic." Tamera admits she often gets emotional while trimming the tree. "We have ornaments from every chapter of our lives - the kids' handmade ones, our first Christmases as wives and moms," she says. "Each one brings back such special memories." This year, Tamera will host her annual family dinner and send out her personalized photo cards - a 13-year tradition. Tia, meanwhile, plans to trade snow for sand, taking her kids to the Bahamas. "I realized my kids ma