The pools were packed this weekend in Las Vegas -- and the stars were all ready to show off their bikini bods!
"90210" star AnnaLynne McCord stepped out with her sister, Angel, for a bachelorette party for good friend Sara Oriolo at Wet Republic at the MGM. Fun fact: Oriolo is engaged to Kellan Lutz's brother, Brandon.
Also hitting the pool this weekend were "Holly's World" stars Angel Porrino and Laura Croft, who threw on some bunny ears with their bathing suits to host an Easter Egg Hunt on Saturday at TAO Beach. "Lost" star Rebecca Mader also went to TAO Beach to celebrate her birthday.
Not everyone was at the pool though -- check out the gallery to see what star like Kat Graham from "Vampire Diaries" and "Make It or Break It's" Cassie Scerbo were also up to in Sin City!