It looks like you may be asking about a Mario-related music video or channel, and the most likely match I found is Mario’s official video for “Braid My Hair”. That’s the clearest result tied to Mario and a hairstyle- focused look, but I can’t confirm from the available info that it specifically shows an afro haircut.

Most likely match

  • Mario - “Braid My Hair” is an official music video by Mario.
  • Another Mario channel result exists on YouTube, but it appears to be a music/DJ channel rather than the singer Mario you may mean.

Other possible interpretation

  • If you meant a barbershop or comedy video with Mario styled in an afro-like cut, I also found a “Mario” haircut-style video and an “if Mario came to the barbershop” clip, but neither clearly matches your description exactly.
  • If you meant an Afro house music channel with Mario in the name, there is a “Mario_Music” channel focused on house and afro house sounds.

Best guess

The strongest guess is Mario - Braid My Hair.