Chicago

Appeared at the Isle of Wight Festival in 1970

"Chicago" formed in 1967 in Chicago, Illinois. The band began as a politically charged, sometimes experimental rock band and later moved to a softer sound

Chicago became famous for producing a number of hit ballads. They had a steady stream of hits throughout the 1970s and 1980s, Second only to the Beach Boys, Chicago, in terms of singles and albums, is one of the longest running and most successful U.S. pop/rock and roll groups according to Billboards, Chicago was the leading U.S. singles charting group during the 1970s.