Large triangular black craft with tiered colored party type lights, Motionless, noiseless over Lake Benbrook, Texas.

Heading south on Hwy 377 I witnessed a large, larger by 3X a stealth aircraft, triangle, black in color with tiered colored lights hovering, with no noise, no movement over Lake Benbrook. The lights were red yellow and blue. I had the feeling that it was a party craft! It felt like whatever or whomever was in that craft was partying. I just sensed that strongly. There were other vehicles going the same direction as I, but none of them stopped or looked at it. It seemed that I was the only one seeing it! It was about 50 feet from me to the east. It was just over the trees. It was dark and I couldn't see the horizon as the sun set in the west. I was dumbfounded that no other vehicles seemed to notice it.