Seems his name is either Matioesis or Baobazz, depending on how he wears his hair. And he seems to be from either southern Chile or southern Argentina.
http://www.youtube.com/watch?v=I4MB6AT--hE
http://www.youtube.com/watch?v=5Y0BrSNb_vE
Somebody to pay attention to in the future. Now if we only knew his name!