220px-The_Eagles_-_One_of_These_Nights#5 – Eagles – “One Of These Nights” – (1975)

Man the into to this song is dark. It’s just menacing. Then the lyrics kick in and it really doesn’t brighten up any, but it’s not as menacing. This was the Eagles’ second #1 and it has a pinch of disco hidden behind all that wonderful harmonizing backing vocals and great guitar playing. Even Glenn Frey said this was his favorite Eagles song. It’s awesome.