The Moody Blues - Nights In White Satin

Release date: 1967

This song introduced a new sound for the band. When they formed, they were more of a blues band, and had a hit in 1965 with a cover of Bessie Banks' "Go Now." With the songs on Days of Future Passed, they distinguished themselves with original songs in a more psychedelic/orchestral sound.

The Moody Blues enjoyed a long and illustrious career that took them well into the 2010's, and included thousands of performances, most of which featured this song. 

Album: Days of Future Passed