20-year-old Daniel Pellegrine, an up-and-coming funk artist known to fans as MC Daleste, sustained a single bullet wound to the chest and was rushed to a nearby hospital where he was later pronounced dead.
[There was a video here]
Police would not release any information about the alleged shooter, including whether or not he or she were caught.
"What nonsense," wrote MC Buru on his Facebook page. "Soon MCs will have to sing with a microphone in one hand and an automatic weapon in the other."
The death of MC Daleste is the latest incident to draw worldwide attention to violence in Brazil ahead of next year's World Cup.