Wow, very interesting, Bright Spark! Were these circular objects large-- the size of maybe a UFO craft? You may have seen UFO's --who were enjoying that rainbow-- one of the many Earth phenomena's we humans often take for granted that I'm sure other Beings enjoy watching.

They could also have been fae's as well. I've seen the Faery zoom in the air as small comets-- wether white or pink and sparkly. Once I have seen a small red light fly into some trees-- so it's hard to say that what you saw was NOT faery! Very unusual sighting though, to say the least!