Originally released in 1975, Chicago IX gathered the band's most iconic tracks from their early albums into one definitive hits collection. Celebrating it's 50th anniversary, this expanded edition offers 21 remastered tracks - including fan favourites like "25 or 6 to 4," "Saturday in the Park," and "If You Leave Me Now" - showcasing the legendary "rock band with horns" at their peak. A must-have for both long-time fans and new listeners alike.