NEWARK, N.J. (AP) — A power outage left Garth Brooks fans briefly in the dark for his final performance after a three-night stop at the Prudential Center in Newark.

The outage occurred just before 8 p.m. Sunday EST while a warm-up act was on the stage. Fans sang Brooks’ song, “Friends in Low Places” while they waited for the lights to come back on.

Public Service Electric and Gas is investigating what caused the outage.

(© Copyright 2017 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)