Photo: Splash News1/28Serena Williams
Photo: (Clockwise from top left) Courtesy of emmapake.com; Courtesy of torysport.com; Courtesy of net-a-porter.com2/28Emma Pake Olivia + Adriana Deco Diamond bikini, $435, emmapake.com; Tory Sport piped racerback bikini top, $90, torysport.com; Tory Sport piped bikini bottoms, $90, torysport.com; La Perla Color Power tulle-paneled swimsuit, $360, net-a-porter.com
Photo: Splash News3/28Serena Williams
Photo: (Clockwise from top left) Courtesy of revolves.com; Courtesy of cos.com; Courtesy of wardwhillas.com4/28Acacia Swimwear Ehukai rash guard, $246, revolves.com; Cos high round-neck bikini top, $39, cosstores.com; Cos high-cut bikini bottoms, $35, cosstores.com; Ward Whillas Marlen rash guard, $250, wardwhillas.com
Photo: Backgrid5/28Mary-Kate Olsen
Photo: (Clockwise from top left) Courtesy of shop.mikoh.com; Courtesy of jadeswim.com; matchesfashion.com6/28Mikoh Carmel top, $112, mikoh.com; Mikoh Sao Paulo bottom, $90, mikoh.com; Jade Swim All Around bandeau, $80, jadeswim.com; Jade Swim Most Wanted bottoms, $90, jadeswim.com; Matteau The Petite triangle bikini top, $120, matchesfashion.com; Matteau The Petite bikini briefs, $120, matchesfashion.com
Photo: Backgrid7/28Ashley Olsen
Photo: (Clockwise from top left) Courtesy of net-a-porter.com; Courtesy of maliajones.com; Courtesy of herthelabel.com8/28Eres Les Essentiels Cassiopee bandeau swimsuit, $425, net-a-porter.com; Malia Jones triangle-top one-piece, $245, maliajones.com; Her the Label Isabel powder blue bikini, $195, herthelabel.com
Photo: Pacific Coast News9/28Selena Gomez
Photo: (Clockwise from top left) Courtesy of marysiaswim.com; Courtesy of mytheresa.com; Courtesy of rochellesara.com10/28Marysia Spring bikini top, $150, marysiaswim.com; Marysia Santa Monica bikini bottoms, $148, marysiaswim.com; Lisa Marie Fernandez Genevieve high-waisted seersucker bikini, $385, mytheresa.com; Rochelle Sara Laeti top in honeydew, $220, rochellesara.com; Rochelle Sara Emily bottoms in black, $140, rochellesara.com
Photo: INF Photo11/28Selena Gomez
Photo: (Clockwise from top left) Courtesy of modaoperandi.com (2); Courtesy of matchesdfashion.com12/28Kisuii Uma keyhole one-piece, $250, modaoperandi.com; Rye Bizz striped swimsuit, $180, modaoperandi.com; Roxana Salehoun waist-bow swimsuit, $229, matchesfashion.com
Photo: Splash News13/28Kendall Jenner
Photo: (Clockwise from top left) Courtesy of net-a-porter.com; Courtesy of rouje.com; Courtesy of madebydawn.com14/28Heidi Klein Milos halter-neck stretch-cloqué bikini top, $140, net-a-porter.com; Heidi Klein Milos stretch-cloqué bikini briefs, $140, net-a-porter.com; Rouje Suzie bikini, $105, rouje.com; Made by Dawn Linx top, $173, madebydawn.com; Made by Dawn Linx bottoms, $156, madebydawn.com
Photo: Backgrid15/28Kendall Jenner
Photo: (Clockwise from top left) Courtesy of matchesfashion.com; Courtesy of net-a-porter.com; Courtesy of bikini.com16/28Fendi Roma classic swimsuit, $322, matchesfashion.com; Calvin Klein Beachwear printed swimsuit, $100, net-a-porter.com; Bikyni racerback on-piece, $95, bikini.com
Photo: Backgrid17/28Rihanna
Photo: (Clockwise from top left) Courtesy of net-a-porter.com; Courtesy of modaoperandi.com (2)18/28Emilio Pucci cut-out printed halter-neck swimsuit, $595, net-a-porter.com; Missoni Mare cut-out one-piece swimsuit, $670, modaoperandi.com; Jonathan Simkhai ruffle-trimmed embroidered cut-out swimsuit, $295, modaoperandi.com
Photo: Splash News19/28Rihanna
Photo: (Clockwise from top left) Courtesy of basicswim.com; Courtesy of matchesfashion.com; Courtesy of perfectpeachswim.com20/28Basic Swim La Première top, $38, basicswim.com; Basic Swim La Première bottoms, $38, basicswim.com; Stella McCartney Running Horses–print bikini top, $93, matchesfashion.com; Stella McCartney Running Horses–print bikini briefs, $67, matchesfashion.com; Perfect Peach Take Me to Rio bottoms, $97, perfectpeachswim.com
Photo: Splash News21/28Beyoncé
Photo: (Clockwise from top left) Courtesy of matchesfashion.com; Courtesy of net-a-porter.com; Courtesy of modaoperandi.com22/28The Upside Enter the Dragon–print performance paddle suit, $219, matchesfashion.com; Fendi ruffled cut-out floral-print swimsuit, $570, net-a-porter.com; Sissa Bebel maillot one-piece, $250, modaoperandi.com
Photo: Fame Flynet23/28Beyoncé
Photo: (Clockwise from top left) Courtesy of riverisland.com; Courtesy of paleswimwear.com; Courtesy of eberjey.com24/28River Island green leaf-print balconette bikini, $44, riverisland.com; River Island green leaf-print side-tie bikini bottoms, $26, riverisland.com; Pale Swimwear Fiesta bikini, $145, paleswimwear.com; Eberjey Geo Garland Nadia bikini top, $92, eberjey.com; Eberjey Geo Garland Coco bikini bottoms, $75, eberjey.com
Photo: Splash News25/28Bella Hadid
Photo: (Clockwise from top left) Courtesy of x; Courtesy of girls-on-swim.com; Courtesy of montce.com26/28Guess off-the-shoulder logo bandeau, $49, guess.com; Girls on Swim bare strappy bikini, $185, girls-on-swim.com; Montce Swim Smell the Roses private beach top and baby blue Uno bottoms bikini set, $160, montce.com
Photo: Splash News27/28Bella Hadid
Photo: (Clockwise from top left) Courtesy of net-a-porter.com (3)28/28Fleur du Mal metallic swimsuit, $225, net-a-porter.com; Moschino stretch-jersey swimsuit, $360, net-a-porter.com; L’Agent by Agent Provocateur Sophia lace-up swimsuit, $200, net-a-porter.com
