Chicago XI is the ninth studio album (eleventh overall) by Chicago, released in 1977. As the successor to Chicago X, the album marked the end of an era for Chicago in more ways than one. This would be the last Chicago album to feature guitarist and founding member Terry Kath prior to his death in an accident with a gun just over four months later, and the last Chicago album to be produced by James William Guercio.
Original Label with Fold-out jacket. LP Columbia JC 34860 1977 VG*****