Biography
There are at least five artists going by the name NJ:
1) NJ, or Nazpari Jafar, is a pop-folk artist from Azerbaijan.
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2) A xxx artist from Myanmar
3) A Malajali hip-hop artist from Kerala in India
4) Singer-songwriteer from Atlanta, Georgia USA
5) A Japanese duo
Biography text from Last.fm, available under CC BY-SA.