Michelle Obama got groovy on Late Night with Jimmy Fallon on Friday night to celebrate the third anniversary of her ‘Let’s Move!’ campaign. Encouraging parents everywhere to “get up and get moving with their kids,” Obama performed 'The Evolution of Mom Dancing' with Fallon, wearing J. Crew’s ‘windowpane check’ cashmere cardigan in ‘navy sky’ ($268) layered over their ‘microcheck’ cashmere shell in ‘sky navy’ ($178).To compliment the occasion, Fallon went à mom too, cross-dressing in a long wig, khakis, and a pink cardi.