Tap Root Manuscript is the sixth studio album recorded by Neil Diamond, released in October 1970. It was one of the most experimental albums he ever recorded, featuring rock music fused with prominent African sounds and instruments. The album was a commercial success, going Gold in three months, eventually certified Platinum by the RIAA. The album's success was powered primarily by "Cracklin' Rosie," his first number 1 single, with help from Diamond's cover of "He Ain't Heavy, He's My Brother", which rose to number 20. The latter song had been a major hit for the Hollies the previous year.