Korn were forced to cut their May 27 performance at Rock In Rio Lisbon short, after six songs, due to electrical problems. The issues began when the band opened with “Blind.” They left the stage for awhile, and tried to restart the show later, but had to stop again when the power went out again during a partial cover of Metallica‘s “One,” which was mixed into “Shoots And Ladders.”
https://www.youtube.com/watch?v=fz2XQijUY2k
https://www.youtube.com/watch?v=dP4YwMAWm7Q
https://www.youtube.com/watch?v=DDnq09mGn3E
On another note, it seems Jonathan Davis fell over during the show as well:
Metal Anarchy 