The day after a body was found in his car in Hollywood, singer D4vd was belting his TikTok hit Romantic Homicide - a brooding breakup song about killing an ex with no regret - to a sold-out crowd in Minneapolis.

The US recording artist had self-launched his music career from his sister's closet while working a part-time gig at Starbucks. It led him to viral fame, millions of followers online, and a global tour.

But all of it came to an abrupt halt last month with the discovery of a severely decomposed body in the front trunk of his Tesla.

The corpse was identified as that of 15-year-old runaway Celeste Rivas Hernandez.

A month later, mystery still surrounds the teen's death, as well as her relationship to the 20-year-old singer, whose legal name is David Anthony Burke.