An 18-year-old high school student was among three people killed in a horror multi-vehicle crash in Missouri — just days after she was voted prom queen.

Jordyn “Lunar” William, a senior at Ritenour High School, was a passenger in her 53-year-old aunt Cherese Fisher’s Lexus when they were sideswiped by another car in Bellefontaine Neighbors

on Friday night.

The collision caused the Lexus to careen into oncoming traffic and crash into a Toyota Highlander, causing it to overturn, cops said.

Jordyn “Lunar” William, 18, was among three people killed in a horror multi-vehicle crash in Missouri — just days after she was voted prom queen.…