This A capella version will give you chills

Source: The Isolated Vocals of Marvin Gaye’s “I Heard it Through the Grapevine” «TwistedSifter

 

Well this is awesome

Source: Choir Perfectly Mimics Rainstorm Before a Stirring Rendition of ‘Africa’ by Toto

Classic singles that instantly transport you to a moment in time and yet still sound fresh

Source: The Ultimate Jukebox: 50 of the Greatest No. 1 Hits Ever