The Chicago-based group the Exceptions -- not to be confused with similarly named outfits in other cities -- were formed at the end of the 1950s by 15-year-old Marty Grebb, a drummer and multi-instrumentalist, and his high-school friend Peter Cetera, who played bass. Another key member of the outfit was guitarist/singer Kal David, whose name was sometimes put on the front end of their billing, as Kal David & the Exceptions. It was under that name that they recorded a single, "Forgotten Dreams" b/w "Little Everythings," for the Ardore label in late 1961. They played a lot of gigs around Chicago, crossing paths with the likes of Jimmy Reed and Paul Butterfield (with whom Grebb later recorded), and backing groups such as the Dells. Kal David & the Exceptions were also signed to Vee-Jay Records, and released a pair of singles, "Searchin'" b/w "Daydreaming of You" (1964) and "Come on Home" b/w "Dancin' Danny" (1965), on their Tollie Records subsidiary. Later on, billed simply as the Exceptions after David's departure (to join the Rovin' Kind, who later became Illinois Speed Press), Grebb, Cetera, and 12-string guitarist Jimmy Vincent recorded for Mercury, appearing with Butterfield and guitarist Mike Bloomfield on the Al Campbell LP Al Campbell Sings Where It's At. The Exceptions broke up in the mid-'60s, Grebb later joining the Buckinghams and Cetera going on to become a founding member of Chicago.