Formed in its namesake city in 1967, Chicago is the first American band ever to chart albums in Billboardr's Pop Top 40 in five consecutive decades. In 2002, Rhino entered into a long-term partnership with this extraordinary group to restore their extensive, genre-defying catalogue as well as develop new projects (such as 2006's XXX, their first new studio album in a decade). Now Rhino adds to Chicago's legacy and salutes their 40th anniversary with a newly compiled 2-CD collection that spans their entire recording history, from the stellar 1969 debut LP Chicago Transit Authority to Chicago XXX. With a career encompassing five consecutive #1 albums, 13 platinum albums, 21 Top 10 singles, and many other laurels, Chicago is among the most successfully charting American groups of all time.