The 138th Westminster Kennel Club dog show is already woofing in New York, with pups of all breeds getting preened and prepped to look their best. Judging has already started, and the event will end with the crowning of best in show! With 2,845 dogs representing 190 dog breed varieties, hailing from all 50 states plus pooches from Australia, Japan, and Brazil, the show is sure to be a good one. While waiting for the announcement of the next top dog, take a look back at past winners of the coveted crown.