The Doobie Brothers "What a fool believes" video live.

The Doobie Brothers are an American rock band, best known for hit singles like "Black Water", "China Grove", "Listen to the Music" and "What a Fool Believes". They sold millions of records throughout the 1970s.

After almost a decade on the road, and with seven albums under their belts, the Doobies' career unexpectedly soared with the success of their next album, 1978's "Minute by Minute". It spent five weeks at the top of the music charts and dominated several radio formats for the better part of two years.

Michael McDonald's song "What a Fool Believes," written with Kenny Loggins, was the band's second #1 single and earned the songwriting duo a Grammy Award for Record of the Year. The breezy, Michael McDonald-penned title song received the Grammy for Pop Vocal Performance by a Group and the album was honored with an Album of the Year nod.

Among the other memorable songs on the album were the first single, "Here to Love You," "Dependin' On You" (co-written by Michael McDonald and Patrick Simmons), "Steamer Lane Breakdown" (a Simmons bluegrass instrumental workout) and Michael McDonald's "How Will the Fools Survive" (featuring an epic, career-defining guitar lead by Jeff Baxter). Nicolette Larson (whose best-known hit was "Lotta Love") and departed former bandleader Michael Johnston contributed guest vocals on the album.

The triumph of "Minute by Minute" was bittersweet, however, because it coincided with the near dissolution of the band. The pressure of touring while recording and releasing an album each year had worn the members down. Before "Minute by Minute"'s monumental success had become apparent, founding drummer Hartman and longtime guitarist Baxter exited through the revolving door. A two-song set on the January 27, 1979 broadcast of Saturday Night Live with guest host Michael Palin marked the final television appearance, and possibly last live performance, of the band in its middle-period configuration.

The Doobie Brothers "What a fool believes" from the album "Minute By Minute" (December 1978):