Bobby McFerrin & Gimme5

There's far more to McFerrin than that giddy 1988 a cappella hit with the video featuring Robin Williams and Bill Irwin, including collaborations with symphony orchestras, jazz titans and scientists. Here, the uncategorizable vocal marvel plays with his latest ensemble, Gimme5, which bases its work off of McFerrin's "Circlesinging" practice and invites audience members to join in on its inventive reimagination of bluegrass, folk, jazz, pop and classical.