The Lovin' Spoonful folk musicians who were involved with the American folk music revival of the 1950s through the early 1960s. Sebastian formed the Spoonful with guitarist Zal Yanovsky from a bohemian folk group called The Mugwumps (two other members, Cass Elliot and Denny Doherty, later formed half of the Mamas & the Papas), playing local coffee houses and small clubs. The formation of the Lovin' Spoonful during this period was later described in the lyrics of the Mamas & the Papas' 1967 top ten hit, "Creeque Alley". Drummer Jan Carl and bassist Steve Boone rounded out the group, but Carl was replaced
The Mamas & the Papas February 1966 and became its only number-one on the "Billboard" 200. The third and final single from the album, "Monday, Monday", was released in March 1966. It became the band's only number-one hit in the US, reached number three in the UK, and was the first number-one on Spain's new Los 40 Principales. "Monday, Monday" won the Grammy Award for Best Pop Performance by a Duo or Group with Vocals in 1967. It was also nominated for Best Performance by a Vocal Group, Best Contemporary Song, and Record of the Year. Their second album, "The Mamas & the Papas", is