What makes Deliver by The Mamas & the Papas notable?

'Deliver' showcased the group's ability to cover popular songs, like 'My Girl' and 'Twist and Shout', which helped maintain their commercial presence even as musical tastes evolved. The album reached number 22 on the Billboard 200 chart and is recognized for its innovative harmonies and arrangements during a transformative period in American music. Released on February 1, 1967, 'Deliver' was the third studio album by The Mamas & the Papas, following their breakthrough record 'If You Can Believe Your Eyes and Ears' from 1966. At this point in their career, the group was solidifying their place in the music scene with a unique sound that combined folk influences with pop sensibilities, while also navigating internal tensions that would later lead to lineup changes.