After 12 years in the biz, Britney Spears is no stranger to costume changes.
The "Womanizer" singer, 28, began her romantic Hawaiian getaway with beau Jason Trawick by wearing a studded yellow bikini August 24.
The next day, Spears showed off her toned tummy in a turquoise two-piece, followed by a hot pink bikini Thursday. The singer -- who recently filmed a cameo on Glee -- capped off her week of fun in the sun with a striped suit on September 3.
Tell Us: Which sexy two-piece did Britney Spears rock best?