CHICAGO II: LIVE ON SOUNDSTAGE CD/DVD underscores the enduring popularity of Chicago's second album with an energized performance of the entire double-album in front of a live audience. Includes video of the program and a 5.1 audio mix. Originally released in January 1970 as Chicago (and later dubbed Chicago II ), the album was a major breakthrough for the band and features some of the group's biggest hits, including the Top 10 singles: "25 Or 6 To 4," "Make Me Smile" and "Colour My World."