You’ve no doubt already noticed online items regarding this in recent days, even though it was originally posted on YouTube almost two years ago in July 2011.
We’re talking about the isolated vocal track from Under Pressure sung by David Bowie and Freddie Mercury, which has now been picked up by various online sites after it was rediscovered by openculture.com.
You can listen to the unaccompanied, incredible vocal gymnastics of the pair: link .
source: link