Mercy, Mercy, Mercy was originally performed by Joe Zawinul.

Mercy, Mercy, Mercy has been played by Umphrey's McGee 1 time(s).
It was played at 0.03% of Umphrey's McGee shows.
It was last played 2007-09-13, which was 1688 show(s) ago.
There have been 1688 show(s) since the live debut.
Since its debut, "Mercy, Mercy, Mercy" has been played, on average, once every 1688 show(s).