1960s - 1970s
He was a founding member and original drummer for Sly & The Family Stone, in December 1966, for Sly & The Family Stone, and in 1971 he became the first member to quit the group, citing the band's continuing turmoil. As a member of Sly and the Family Stone, Errico played at Woodstock music festival in 1969.
Errico toured with jazz-fusion group Weather Report in 1973/74, but never made a studio recording with the group. His performances can be heard on live recordings hosted at the website Wolfgang's Vault. Joe Zawinul said that no one could play his tune "Boogie Woogie Waltz" better than Errico had.
Errico joined the David Bowie band for his Diamond Dogs Tour during September 1974.
Errico later collaborated with bands such as Santana, on Carlos Santana and Buddy Miles Live, released June 7, 1972, and with the Grateful Dead. In 1974 he began drumming for the Jerry Garcia Band on and off thru 1984. He also worked with Larry Graham (from Sly & The Family Stone) plus members of the Tower of Power horns, Journey and the Pointer Sisters on the first album for Betty Davis; Errico produced and drummed.