Celebrity How I Spent My Summer Vacation Tori Spelling & Stella's matching bikinis! Kim Kardashian's Fourth of July fireworks! Check out how the stars spent their summer on Twitter! By Cara Lynn Shultz Published on September 3, 2010 12:00 PM Share Tweet Pin Email Trending Videos 01 of 19 TORI & STELLA Courtesy Tori Spelling Tori Spelling's daughter Stella, 2, is her mini-me – right down to their matching bikinis, which the look-alike twosome wore during a trip to San Diego's La Costa Resort and Spa. "Yes, we both have our sunscreen on!" Spelling Tweeted. 02 of 19 LADY GAGA Courtesy Lady Gaga The pop diva shared this photo from the Canadian leg of her Monster Ball tour as she fashioned some margarita-like drinks with tonic water and Patron tequila. "Canada isn't that dry, but it for sure kicks a–," she Tweeted. 03 of 19 LAUREN CONRAD Courtesy Lauren Conrad Whee! Tweeted the author and fashion designer. 04 of 19 KIM KARDASHIAN Courtesy Kim Kardashian Spending her Independence Day on a yacht cruising Manhattan's Hudson River, the reality star and her family got a front-row view of Macy's annual fireworks display. 05 of 19 KATY PERRY Courtesy Katy Perry How else would this California Gurl celebrate the Fourth of July? the singer Tweeted. 06 of 19 DEMI LOVATO Courtesy Demi Lovato The teen star spent her summer opening for the Jonas Brothers, performing to sold-out crowds. "And this is just our soundcheck!!! #BESTFANSEVER," wrote Lovato about the Hardford, Conn., stop of their tour. 07 of 19 JOEL MADDEN Courtesy Joel Madden Even though he spent time in Germany on tour with Good Charlotte, the singer didn't let his hectic schedule interfere with his workout routing. 08 of 19 KELLIE PICKLER Courtesy Kellie Pickler How's the view up there? In Milwaukee to perform at Summerfest – billed as the "world's largest music festival" – Pickler took a break for a time-honored summer tradition – thrill rides! "On the sky glide," she Tweeted. "Yeehaw!" 09 of 19 JESSICA & ERIC Courtesy Jessica Simpson Jessica Simpson met a boy, cute as can be, and engaged in a little summer lovin' on Twitter, sharing this photo of herself smooching beau Eric Johnson. "Romance 101..getting kissed by my Yalie...me not lookin' so smart...:) but YUM!" she wrote. 10 of 19 PARIS HILTON Courtesy Paris Hilton Tweeted the heiress, sharing this photo on a Jet-Ski on her European vacation. 11 of 19 BETTE MIDLER Courtesy Bette Midler She's the wind beneath his paws! While promoting Cats amp Dogs: The Revenge of Kitty Galore this summer, the actress posed with the movie's namesake star, the hairless cat she voices in the movie. "Here I am with the actor," she Tweeted. 12 of 19 BRAD PAISLEY Courtesy Brad Paisley The country star spent his summer on the H20 Tour – which lived up to its name during Paisley's stop in his home state of West Virginia. "H2O tour at it's wettest. This is not photoshopped." 13 of 19 NASTIA LIUKIN Courtesy Nastia Liukin the Olympian and fashion designer Tweeted, adding, "And Rex decided to come swimming with me." Now that's a real dog day of summer! 14 of 19 CINDY CRAWFORD Courtesy Cindy Crawford "Summer almost over for me and my gang!" Tweeted the model and furniture designer during a relaxing boat trip. "Enjoying the sunset!" 15 of 19 TRAVIE MCCOY Courtesy Travie McCoy The Gym Class Heroes singer celebrated his 29th birthday with an Oreo-cookie cake and some cocktails. "Such a light weight these days I am! Couple bottles of moscato and a few shots and I'm counting sheep standing up," the "Billionaire" singer Tweeted. 16 of 19 IVANKA TRUMP Courtesy Ivanka Trump Her summer job took her to new heights – literally! – when Trump checked out the construction site of the Trump International Hotel amp Tower in Toronto. 17 of 19 NICK LACHEY Courtesy Nick Lachey One proven way to beat the heat: ice cream! "If anyone in cincy hasn't had putz's ice cream, you haven't lived! It's the best," Tweeted Lachey, posting this shot of his swirled cone and the workers at Cincinnati's Putz's Creamy Whip. 18 of 19 NICKY HILTON Courtesy Nicky Hilton Like Lachey, Hilton also dug into a frosty dessert, Tweeting from Monaco, . Yum! 19 of 19 ALICIA KEYS Courtesy Alicia Keys Staying close to fiancé Swizz Beatz (and his vuvuzela) during the kickoff for the biggest sports event of the summer – the World Cup! – the expectant singer cheers after performing her hits "Fallin'" and "You Don't Know My Name." "Tonight was a celebration!" she Tweeted.