Jessica Alba, Rihanna and More Stars' Sexy Bikini Style

Credit: Islandpaps/Splash News Online

Some of Hollywood's hottest ladies hit the beach over the holidays, showing off their fierce physiques in eye-catching two-pieces.

Rihanna, 23, went high-fashion, rocking a citrus-hued string bikini by Missoni with a baseball cap while soaking up the sun in Barbados Dec. 30.

New mom Jessica Alba, 30, revealed her amazing post-baby body in a vibrant pink bikini in Cabo San Lucas, Mexico Jan. 3.

And Miley Cyrus, 19, showed off her newly slimmed-down shape in a tangerine Eres bikini, which she accessorized with a stack of bracelets and Ray Ban sunglasses in Miami, Fla. Dec. 30.