Lindsay Lohan wasn't the only celeb celebrating a birthday this weekend: Ashley Tisdale turned 26! The Hellcats actress celebrated with a Malibu beach party this weekend.
Ashley was joined by a few friends, along with longtime pal and High School Musical co-star Zac Efron, in the water while wearing a cute patterned bikini. Zac showed off his abs in shorts -- while still wearing a belt -- while he splashed in the water and gave Ashley a piggyback ride.
Ashley tweeted about her fun day in the ocean: "So happy zacary made it to my party! He's my brother/best friend..........
