When not heading up her Cravings empire, Chrissy Teigen knows how to have fun. Over the weekend, she and her husband John Legend flew into New York City to co-host the annual New York Dog Parade in Tompkins Square Park. They dressed up in a couples' costume—Legend as Daejohn Love, a scammer who posed as a San Francisco 49ers player, and Teigen as a football coach. But after a goofy day in the park, Teigen traded her tracksuit, baseball cap and w…