Chicago's debut album, 'Chicago Transit Authority' (self-titled at the time), was a groundbreaking 2LP set. Inducted into the Grammy Hall of Fame in 2014, It has been certified double platinum. It showcased the band's imaginative writing, proficient musicality and genre blending mix of rock, jazz, funk and pop. Released in 1969, it stayed on the charts for a then record of 171 weeks. The album kicks off with the autobiographical 'Introduction' and includes many of the band's most enduring hits, such as 'Does Anybody Really Know What Time It Is?', 'Beginnings', and 'Questions 67 and 68'.