This year was all about the bikini for a number of hard-bodied stars. Jessica Alba showed off her fit frame when she hit the beach in St. Barts earlier this year, while models Kate Upton and Gisele Bündchen rocked their assets in string two-pieces. Meanwhile, Julianne Hough got over her broken heart following her breakup with Ryan Seacrest by taking a girls' trip to Miami with pal Nina Dobrev. See all those moments and many more, including Kim Kardashian's pregnant bikini snaps and Kate Moss's swimwear-filled vacation, in our roundup, and make sure to check out all our best of 2013 coverage!
Julianne Hough took a dip in the ocean during an April stop in Miami.
In November, Diane Kruger looked chic in a mismatched two-piece while vacationing in Cabo San Lucas, Mexico.
Rachel Bilson rocked a printed bikini during her April escape to Barbados.
Rihanna got wet while in Barbados in November.
Nicole Richie put her impressive bikini body on display when she hit up St. Barts in April.
Kate Upton waded in the water during a July visit to the Bahamas.
Selena Gomez hung out poolside in Miami in October.
Molly Sims slipped into a white bikini while vacationing in Cabo San Lucas, Mexico, in October.
Kate Moss wore a bikini when she jumped off a boat during an August trip to Formentera.
Kim Kardashian was still pregnant when she took a dip in an LA pool in June.
In August, Charlize Theron broke out the bikini during a birthday trip to Hawaii.
Cameron Diaz, Leslie Mann, and Kate Upton brought their bikinis out in the Bahamas in July.
Rosie Huntington-Whiteley soaked up the sun in the south of France in June.
In April, Doutzen Kroes playfully posed in the water during a beach trip with her family in Miami.
Jennifer Aniston put her bikini body on display during an August trip to Cabo San Lucas, Mexico.
In July, Taylor Swift wore a retro two-piece while hanging around Westerly, RI.
Lily Aldridge struck a pose in St. Barts in August.
Keira Knightley and James Righton ventured into the sea during their May honeymoon in Italy.
Heather Graham hit the beach in Brazil with her Hangover castmates in May.
Nina Dobrev showed off her beach style when she visited Miami in April.
In July, Rosie Huntington-Whiteley put her model bikini body on display in Australia.
Gwen Stefani lounged in a bikini during a family trip to the Cote d'Azur in August.
In March, Gisele Bündchen took her daughter, Vivian, to the beach in Costa Rica.
In July, Bar Refaeli put her bikini body on display during a trip to Formentera.
Rita Ora took in the view from her Miami hotel room in November.
In April, Jessica Alba wore a bikini during a trip to St. Barts.
Adriana Lima splashed in the water during a St. Barts photo shoot for Victoria's Secret in May.
In September, Hayden Panettiere took a trip to the beach in Miami.
Katy Perry wore a bikini while drinking her morning coffee during a November vacation in Miami.
In August, Carla Bruni tested the waters in Cap Negre, France.
Jada Pinkett Smith donned a bikini in March when she hit the beach in Hawaii.
In May, Candice Swanepoel wore a bright two-piece when she hit the waves in Miami.
In July, AnnaLynne McCord strolled in the sand during a beach visit in LA.
Bethenny Frankel hit up the pool in Miami back in April.
Kristin Cavallari hit the pool in LA back in June.
In April, LeAnn Rimes wore a white bikini during a vacation in Miami.
In January, Olivia Palermo took a vacation to St. Barts.
Alessandra Ambrosio modeled bikinis for Victoria's Secret during a January photo shoot in St. Barts.
Cara Delevingne stripped down to a bikini during a July yacht trip in the south of France.
Miley Cyrus slipped into a bikini during a January trip to Costa Rica.
Jennifer Lopez wore a purple bikini during a boat trip in Miami back in January.
Michelle Rodriguez took a dip during an April trip to Miami.
Pink showed off her bikini body during a family vacation to Cabo San Lucas, Mexico, in October.
Kate Beckinsale wore a white two-piece during her Cabo San Lucas, Mexico, getaway in August.
Stacy Keibler and Naomi Campbell showed off their bikini bodies while yachting in Ibiza in August.
Olivia Wilde lounged in a black bikini during a Hawaiian vacation with Jason Sudeikis in May.
Suki Waterhouse made her own bikini when she hit the water in Hawaii with Bradley Cooper in September.
Britney Spears went bold in a blue bikini to dip in the pool in Rancho Palos Verdes, CA, in May.
In May, fitness guru Jillian Michaels took her family to the beach in Miami.
In July, Cameron Diaz visited a beach in the Bahamas.
Source : http://www.popsugar.com/Celebrities-Bikinis-2013-32765898
