Peter Cetera was on an album.
Peter Cetera . With `` If You Leave Me Now , '' a song written and sung by Cetera on the group 's tenth album , Chicago garnered its first Grammy Award . As a solo artist , Cetera has scored six Top 40 singles , including two that reached number one on [ [ Billboard Hot 100 | Billboard '' 's Hot 100 ] ] chart in 1986 , `` Glory of Love '' and `` The Next Time I Fall . ''