There's a diva... a ram's horn... and a lot of intense singing. But this is far from your typical opera. Today: A look at the "psycho-opera" written by and starring Karen O of the Yeah Yeah Yeahs, called "Stop the Virgens." Plus, she'll perform a song from the show, live. And: Acclaimed young pianist Joyce Yang previews her upcoming album at the Steinway in the Soundcheck studio.