Ellen DeGeneres and Katy Perry at Grammys

This week started with the very rainy BAFTAs in London, a rockin' Grammy Awards in LA, and lively Mardi Gras celebrations. The fun continued with plenty of romantic Valentine's Day events and stylish soirees for Fashion Weeks in New York and London. There was dancing, cat-walking, kissing, and laughing this week from world leaders, politicians, celebrities, and everything in between. See highlights from around the globe with our weekly roundup of the best pictures of the past seven days!