Ashley Tisdale Bikini Pictures

Ashley Tisdale lounged in a bandeau bikini while vacationing in Santa Barbara on Saturday. She and her boyfriend, Scott Speer, traveled to the sunny locale to attend their friend, stylist Emily Current's, wedding over the weekend. Ashley and Scott were just a few of the famous faces at the nuptials, including Minka Kelly, Mandy Moore, and Emma Roberts. The celebrations will continue for Ashley and Scott since his Step Up Revolution premieres today. Scott directed the dance movie, which hits theaters on July 27. It's been a fun month so far for the couple after Ashley marked her 27th birthday with a bikini-filled beach party in Malibu earlier this month.

Ashley Tisdale was surrounded by the ones she loves, including boyfriend Scott Speer, to celebrate her 27th birthday on the beach in Malibu on Monday. Ashley wore a tasseled bikini to play in the sand with her dog, Maui, and share kisses with her man. Ashley had a big group of friends out for the party, including Selena Gomez, who showed off her tanned and toned abs, but kept her swimsuit covered up. Justin Bieber and Selena went for ice cream in LA over the weekend, though yesterday, he tweeted that he wasn't feeling well ahead of his "As Long as You Love Me" video shoot this week, so perhaps that's why he skipped Ashley's festivities. Selena still looked to be having a good time, even without Justin, as a friend threw her over his shoulder and threatened to put her into the waves. Ashley's bash went from day to night, and she shared a picture of their beach bonfire in the evening.

Both Ashley and Selena are in our 2012 PopSugar Bikini Bracket — play now for a chance to win $500 to Neiman Marcus!

Ashley Tisdale threw on a bikini yesterday to lounge by a pool. She spent Easter hanging out at a hotel in Santa Barbara with the company of her dog — see how other celebrities marked Easter! She shared some holiday cheer with her followers on Twitter, writing, "Happy Easter my tweethearts!" Ashley headed to Santa Barbara on Friday to have fun with family, including her adorable young niece. The sight of Ashley in her two-piece hasn't been a rare one this year. She was in Hawaii just two weeks ago for a minivacation, and in February, she hit the beach in LA for an Ocean Pacific shoot with Sarah Hyland and Matt Lanter.

Ashley Tisdale splashed in the waves with a friend in Maui yesterday. She and her pal lounged in the sand in their bikinis and snapped pictures of themselves under the sun. Ashley got away for a Hawaiian vacation just in time for Spring, after also donning a two-piece last month. She was just one of many celebrities in bikinis this Winter, including her friend Selena Gomez. Selena wore a swimsuit while filming Spring Breakers in Florida alongside Vanessa Hudgens last week. The duo rode around on Vespas and later moved to the water, where they splashed around for the cameras.

Venice Beach got a star-studded dose of fun when Ashley Tisdale, Sarah Hyland, Austin Stowell, and Matt Lanter hit the sand for a photo shoot yesterday. Sarah, who was on a break from filming Modern Family, and Ashley wore bikinis and other beachwear while Matt and Austin rode bikes in flip-flops. It was an especially exciting afternoon for Sarah since she was celebrating her two-year anniversary with boyfriend Matt Prokop and shared her love for him on Twitter writing, "happy 2 years baby. I love you too much. Best 2 years ever!!" Matt Lanter has another busy day in front of him since he'll be back in front of the cameras for a photo shoot tomorrow morning before heading to the set of 90210.

Ashley Tisdale threw on a new bikini for another day by the pool in Miami on Saturday. She wore a skimpy white top and pink bottoms after lounging in a blue swimsuit on Friday. Ashley made the trip to visit boyfriend Scott Speer, who is directing Step Up 4 in the area. Production on the movie wrapped over the weekend, which means Ashley can help her man celebrate the end of filming. She made several appearances in Florida while Scott was stationed there, including a getaway in August when she and pal Julianne Hough hit the beach together during a break from Julianne's work on Rock of Ages.

Ashley Tisdale showed skin in a bikini as she lounged by the pool in Miami on Friday. She made the trip to Florida to visit boyfriend Scott Speer, who's in town filming Step Up 4. Ashley's toned physique wasn't the only thing on display during the sunny day, since she also showed off her shorter hairstyle after taking out her extensions last week. Ashley's also been hitting the gym with pals Hilary and Haylie Duff, as she gears up for her new project, Under Construction. Ashley will star in and coproduce the comedy, which was picked up by ABC earlier this month.

Ashley Tisdale and Julianne Hough slipped into another set of bikinis and hit the beach in Miami yesterday. The girls are hanging out in the Florida city where Julianne has been working on Rock of Ages, and Ashley is visiting her boyfriend Scott Speer on the set of Step Up 4. Ashley tweeted a big thanks to Julianne for including her on "all the fun stuff" while Scott is off working. Julianne and Ashley had a bikini jet-ski adventure over the weekend with Derek Hough along as well. Some of Julianne's Rock of Ages costars, like Tom Cruise and Alec Baldwin, have already finished filming on the movie, but she and director Adam Shankman are still toiling away in paradise. The location has certainly given Julianne an opportunity to perfect her tan, and both she and Ashley are going strong in our celebrity bikini bracket — make your picks for a chance to win $1,000 to J.Crew!

Ashley Tisdale and Julianne Hough spent their Saturday afternoon out riding jet skis in Miami. Julianne's brother Derek was along for the fun, and he went shirtless while wearing just his swimsuit. It seems Julianne has been able to enjoy many hours away from the set during her stay in Florida working on Rock of Ages — there's been plenty of Julianne Hough bikini time between her visits to the pool and beach! Ashley has likewise been getting good use out of her two-piece collection this Summer, including during a getaway to Mexico and her birthday celebrations in Las Vegas. Ashley's trip to Florida was so that she could see her boyfriend Scott Speer, who's shooting Step Up 4 there. She followed up the day on the water by meeting up with Scott for an Italian dinner. Julianne, meanwhile, was busy yesterday checking out a screening of her other new movie, Footloose. The dance film is out in October, and she got her brother and Rock of Ages buddies like Adam Shankman and Diego Boneta together to check out an advance cut.

There was some Ashley Tisdale bikini time in store Saturday at the Venus Pool Club in Las Vegas! Ashley threw on her two-piece to wade into the water and chill on a deck chair with a fruit plate. It was the latest two-piece sighting for the actress since Ashley Tisdale and Zac Efron were at the beach in Malibu over the July 4 holiday. Ashley's waterside jaunt came after an evening out at Pure nightclub. She tweeted about her excitement to let loose with friends during a belated birthday celebration. Ashley turned 26 on July 2, but she's stretching out the parties ahead of getting down to work on her next project, Holly, Jingles and Clyde 3D.