Years ago, when we were living in an apartment building, one night we saw a group of three faint, white lights floating and dancing around in the night sky. We watched them move around each other in circular patterns from the balcony for a while and wondered what they were. We considered UFOs and were excited and scared at the thought. We then started looking around to see if we could find some sort of terrestrial source but saw none. We thought of possible explanations and it suddenly dawned on us:
The new IKEA that had just opened across the street was having a grand-opening ceremony and they had one of those animated (skyward facing) spotlight systems.