The oldest form of performance art can be seen this weekend in Lexington. The Ringling Brothers Circus returns to Rupp Arena. Its Ring Master, who is a trained opera singer, says the circuses of Europe are having a deep impact on that American institution. Still, he says circuses don't get the respect they deserve. Also, a UK and NBA Basketball standout sings this weekend at the Lexington Opera House. Rich Copley, who’s an arts and culture reporter for the Lexington Herald Leader, previews both events.