Barack Obama on Vacation in Hawaii 2013

Happy 2013! This week, the world welcomed the new year with fireworks, confetti, and midnight kisses — and while some people braved chilly waters for festive New Year's Day swims, Australians soaked up the sun during days of record heat. Back in the US, the Obamas celebrated the start of January with a trip to Hawaii, while New York women took part in the International Debutante Ball. See banned books, unique weddings, and more by checking out the week in the pictures!