"The Swan" is arguably the most beautiful movement of Carnival of the Animals by Charles-Camille Saint-Saëns, usually performed with just piano and cello. On Monday's Late Show, justifiably legendary cellist Yo-Yo Ma played the tune with Stephen Colbert's house band, Jon Batiste and Stay Human. They didn't stick to the traditional arrangement, throwing in brushed drums, bass, guitar, and sax.