The writing and directing team who created Waiting for Guffman and Best in Show turn their satiric eye toward the world of folk music in this sly mockumentary. Irving Steinbloom was one of the great behind-the-scenes figures of the folk music boom of the late '50s and early '60s, and helped to nurture the careers of three of the best known acts of the era. The Folksmen -- Mark Shubb (Harry Shearer), Alan Barrows (Christopher Guest), and Jerry Palter (Michael McKean) -- were an earnest folk trio who sang of America's noble past and the challenges of the future; they split up in the early '70s after a failed attempt to go electric. Mitch & Mickey were a duo in both music and life, comprised of Mitch Cohen (Eugene Levy) and Mickey Devlin (Catherine O'Hara). They sang soulful songs of love until the collapse of their relationship sent Mitch into a deep and incapacitating depression. And The Main Street Singers were a nine-piece vocal group -- a "neuftet," as they prefer it -- who offered energetic good-time music, cranking out nearly 30 albums in the course of a decade; their current incarnation, The New Main Street Singers (played by Jane Lynch, Parker Posey, John Michael Higgins, David Alan Blasucci, Steve Pandis, Christopher Moynihan, Paul Dooley and Patrick Sauber) is still on the road. When it is announced that the legendary Irving Steinbloom has died (the character never appears in the film), his son Jonathan (Bob Balaban) decides that the best way to memorialize his father is through music, and with the help of Mike LaFontaine (Fred Willard) of Hi-Class Management, they set out to bring The Folksmen, Mitch & Mickey, and The New Main Street Singers back together for a special concert at New York's Town Hall. Christopher Guest, Michael McKean, and Harry Shearer -- who previously teamed up for This Is Spinal Tap -- not only perform together as The Folksmen in A Mighty Wind, but composed most of the songs performed onscreen.