A solid version of the great Spencer Davis Group tune, and one of the best efforts by Chicago.  Personally I prefer the Spencer Davis version, but there is no denying Chicago make the song their own, even to the point of messing up the lyrics.

4.5  Probably one of the better covers of its timeframe, a fairly long but never boring version of the great Spencer Davis Group tune from their debut album- a different and innovative take on the song. The band is in top form here, particularly Cetera's bass, Kath's guitar, and the drumming of Danny Seraphine. The vocals are all really good too. One of their best performances.