Olivia Munn, Winnie Harlow, Jessica Simpson, Kevin Hart and more

Star snaps of the week: Olivia Munn, Winnie Harlow, Jessica Simpson, Kevin Hart and more Birdie Mae Johnson (left) and mom Jessica Simpson celebrate her 7th birthday with a doughnut! jessicasimpson/Instagram Serena Williams begins her spring break by hitting the ski slopes. serenawilliams/Instagram Olivia Munn (left) and her 1-year-old daughter, Mei, load up their cart during a shopping trip. oliviamunn/Instagram JoJo Siwa and her boyfriend, Chris Hughes, are all lovey-dovey as they twin in pink. itsjojosiwa/Instagram Model Winnie Harlow gets some sunshine while on a tropical island getaway. winnieharlow/Instagram Christina Aguilera makes a kissy face at a big cat during a concert  tour stop in Costa Rica. xtina/Instagram Actress Lili Reinhart (center) joins K-pop group BTS to film a music video for their new song, “Swim,” in Lisbon, Portugal. lilireimhart/Instagram Sabrina Carpenter put on a state-of-the-art show while in Colombia. sabrinacarpenter/Instagram Khloé Kardashian and one of her gray kittens are a couple of cool cats  at home. khloekardashian/Instagram Keke Palmer (center) consoles her 3-year-old son, Leo, who’s scared of Chip, at Disney Aulani Resort in Hawaii. keke/Instagram “Baywatch” star David Chokachi, 58, goes paddleboarding in Malibu. Clint Brewer Photography / BACKGRID Joe Jonas lands a smooch on his girlfriend, Tatiana Gabriela, in Miami. MiamiPIXX/VAEM / BACKGRID SZA hits the high seas and snaps a selfie after taking a dip. sza/Instagram Heaven, Kevin Hart’s firstborn, celebrates her 21st birthday with her dad. kevinhart4real/Instagram Behati Prinsloo and  hubby Adam Levine sit at Vito Corleone’s desk at the Academy Museum of Motion Pictures in LA. adamlevine/Instagram Heidi Klum brightens up a dreary day with this monochrome look in Midtown. GC Images Influencer Paige Lorenze  cheers for her fiancé, tennis player Tommy Paul, at the Miami Open. / SplashNews.com