Stevie Wonder's 'Songs in the Key of Life' Celebrates 40th Anniversary

A look back at an iconic album.

In October 1976, "Songs in the Key of Life" shot to No. 1 on the Billboard 200 and spent a total of 82 weeks on the chart.

"Songs in the Key of Life" was inducted into the Grammy Hall of Fame in 2002 and the Library of Congress' National Recording Registry in 2005. In 2014 and 2015, Wonder, now 66, showcased the album during a North American tour.