Porgy and Bess star Audra McDonald dropped by The Colbert Report on March 5 to chat with TV funnyman Stephen Colbert. During the interview, McDonald and Colbert (who performed together at the 2011 Kennedy Center Honors) discussed the opera's rich history, while Colbert noticed a few similarities between himself and McDonald's "liquor guzzling slut" character, Bess. After their chat McDonald delivered a rendition of the show's signature tune "Summertime" with Colbert, who co-starred in the New York Philharmonic concert of Company last year, even showing off his vocal chops by joining! Click below to laugh along with McDonald and Colbert, and check out Porgy and Bess at the Richard Rodgers Theatre.