I Can Hear Music

The Beach Boys had a top 20 hit in 1969 with "I Can Hear Music", which was a smash all over the world, going top five in many countries as well as several U.S. cities.  It was the first song featuring Carl Wilson as the leader of the band, as Brian became more distant.  I consider it to be a Beach Boys' classic and signature song, yet it's mostly forgotten today!
The video is here