Rihanna Wearing a Bikini in Sardinia | Pictures

Rihanna arrived in Italy for a vacation yesterday. Since then, she's been snapping and sharing bikini photos as she relaxes aboard a yacht off the coast of Porto Cervo, Sardinia. Rihanna was spotted just last week in a two-piece, boating in her home country of Barbados. It seems Rihanna's ready for Summer fun after a few months of intense work, promoting Battleship and her new music. It was recently announced that Rihanna ranks third on the list of richest celebrities under 30, having pulled in a whopping $53 million in the last year alone. Twenty-four-year-old Rihanna is spending some of her hard-earned money on her trip to the Italian Riviera this week and may also be celebrating her latest movie role with the vacation. News that she'll lend her voice to the DreamWorks animated film Happy Smekday! alongside The Big Bang Theory's Jim Parsons broke just a few weeks ago. Let us know how you think Rihanna stacks up in this year's PopSugar bikini bracket for the chance to win $500 to Neiman Marcus!