The CHICAGO Collector's Edition 3 CD BOX SET with 10 Bonus Songs is a special release from 2009 that offers fans of the iconic band a comprehensive collection of their greatest hits. This box set features a steel case and multicolor design, making it a visually appealing addition to any music lover's collection. With a compilation of songs spanning the 1970s, this CD set is ideal for those looking to delve into the pop music of that era and enjoy the timeless sound of Chicago.