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The Grass Roots are an American rock band that charted frequently between 1966 and 1975. The band was originally the creation of Lou Adler and songwriting duo P. F. Sloan and Steve Barri. In their career, they achieved two gold albums, one gold single and charted singles on the Billboard Hot 100 a total of 21 times. Among their charting singles, they achieved Top 10 three times, Top 20 three times and Top 40 eight times.

The name "Grass Roots" (originally spelled as one word "Grassroots") originated in mid-1965 as the name of a band project by the Los Angeles songwriter and producer duo of P.F. Sloan and Steve Barri. Sloan and Barri had written several songs in an attempt by their record company, Dunhill Records (owned by Lou Adler), to cash in on the budding folk rock movement. One of these songs was "Where Were You When I Needed You," which was recorded by Sloan and Barri. Sloan provided the lead vocals and played guitar, Larry Knechtel played keyboards, Joe Osborn played the bass and Bones Howe was on drums. The song was released under "The Grass Roots" name and sent, as a demo, to several radio stations of the San Francisco Bay area.  When moderate interest in this new band arose, Sloan and Barri went to look for a group that could incorporate the Grass Roots name. They found one in a San Francisco band that won a Battle of the Bands at a Teenage Fair in San Mateo, California. A new version of "Where Were You When I Needed You" with that band's lead vocalist, Willie Fulton (later, an early member of Tower of Power) was recorded.  In late 1965, the Grass Roots got their first official airplay on Southern California radio stations, such as KGB (AM) in San Diego and KHJ in Los Angeles, with a version of the Bob Dylan song "Mr. Jones (Ballad of a Thin Man)". Dylan granted Sloan the opportunity to cover the song after Sloan showed appreciation for his first listen to Dylan's demo acetate of the song.  For some months, the group were the first "real" Grass Roots. They were utilized by Dunhill to back up The Mamas & the Papas and Barry McGuire and became a house band at The Trip nightclub in Hollywood. The partnership with Sloan and Barri broke up when the band demanded more space for their own more blues rock-oriented material (which Dunhill was not willing to give them). Willie Fulton (lead vocals, guitar), Denny Ellis (guitar, backing vocals), and David Stensen (bass, backing vocals) went back to San Francisco, with drummer Joel Larson being the only one who remained in Los Angeles (he later returned to the group in 1971). Fulton, Ellis and Stensen continued to appear as the Grass Roots. Dunhill ordered them to cease since they decided to start all over again with another group they would groom to be the Grass Roots. In the meantime, the second version of "Where Were You When I Needed You" peaked in the Top 40 in mid-1966, while an album of the same name sold poorly.  Still looking for a group to record their material and promote it with live dates, in 1966 Sloan and Barri offered Wisconsin-based band The Robbs (for whom they produced some early material) a chance to assume the identity of the Grass Roots, but the group declined.
The Grass Roots