Kate Moss took a trip to St. Barts for a friend's birthday on Sunday, partying on a yacht in the crystal blue waters. Wearing a strapless bikini, she was all smiles as she hung out with her friends, laughing, sunbathing, and taking a well-deserved break from her busy schedule. Kate was recently announced as the face of Burberry's next fragrance campaign with Cara Delevingne, and she snapped an adorable selfie with the young model on the set. She also had a very busy February with the BRIT Awards and London Fashion Week. Though her husband, Jamie Hince, wasn't at this big bash, he was by her side to celebrate her 40th birthday back in January, which she spent with a group of famous friends.