Scheff has been the band's frontman since Peter Cetera left in the mid-1980s, but on Tuesday (25Oct16), the group revealed Jeff Coffey, who has been touring with Chicago in recent months, will take over permanently.

Scheff cited "family health reasons" for his decision to step back from the band at the beginning of the summer (16), but insisted he wasn't leaving, adding, "I’m having the time of my life."

A statement from the group reads: "We are so grateful to Jason for the enormous contribution he has made to Chicago over the last 30-plus years. Everyone wishes him and his family all the best as he continues his musical journey."

Scheff already has his next career move mapped out - he's a judge on U.S. reality competition show American Supergroup, which launched on MTV Classic earlier this month.

Chicago's new frontman has toured with Hootie and the Blowfish and Sixpence None the Richer among others.