John Legend and Chrissy Teigen in St Barts and arranging math competitions with friends

Every year this week, celebrities can be found in St Barts. Even this year. Paul McCartney is there, Amy Schumer is there, Lionel Richie was there with his kids, including Sofia, for Christmas, and John Legend and Chrissy Teigen are there with their family and friends, also to celebrate his birthday...