2 comet-like lights descend in unison from sky; Take turns blinking on and off, flying in “U” pattern and infinite symbol pattern

Two bright orange, fiery lights with long trailing tails descended in unison, side by side, at a perfect perpendicular angle towards the horizon. They hovered stationary above the tree line. One disappeared, the other remained. The remaining light began flying in a slow “u” formation, back and forth / up and down a few times. The other reappeared. The two moved in different configurations over the course of 2 minutes, at one time forming the infinite symbol, while taking turns disappearing and reappearing. The entire crowd of concert-goers were present and many of us just stood in awe watching the flying objects instead of the brand on stage.