Chicago Music Icon Gary Loizzo, 70, Dies

(CBS) -- Gary Loizzo a major part of the "Chicago Sound" of the 60s and lead singer of the American Breed is dead at age 70.

WBBM's Bart Shore reports Loizzo died late Saturday night after a two-and-a-half year battle with cancer.

He left the spotlight in the 70s and opened his own recording studio in Oak Lawn where he worked with REO Speedwagon, Styx, Bad Company, Slash, Survivor and Liza Minelli to engineer albums that would sell more than 25 million copies worldwide.