Lindsey Vonn and Matthieu Bailet catch a show and a backstage tour at the hit musical “The Outsiders” on Broadway in NYC. Bruce Glikas/WireImage Jennifer Lopez stuns in red at the premiere of “The Roast of Kevin Hart” in Los Angeles. ZUMAPRESS.com Denise Richards and Sami Sheen step out for lunch on Mother’s Day in Calabasas, Calif. IXOLA / BACKGRID Emma Corrin and new boyfriend Zachary Hart cuddle up for a kiss while on a stroll in London. NASH / BACKGRID Lizzo and her boyfriend Myke Wright are seen leaving the Kevin Hart roast after-party at Gravitas Restaurant in Los Angeles. Melanie Miller / BACKGRID Heidi Klum is a vision in white while arriving at Nice airport with her pup before the Cannes Film Festival in France. MC by Cobra Team / BACKGRID Travis Barker cuddles up to Kourtney Kardashian while wishing her a Happy Mother’s Day. travisbarker/Instagram Hailey Bieber and Jack watch Justin soundcheck. rhode/Instagram Keke Palmer and her son beam in a mirror snap.…