21 Savage

Or whatever his name is.  It's a bizarre story but I assume when he reached adulthood he should simply have updated his immigration status.  Given that he moved to the US aged 12 and appears to have been there since then I can see why he considers himself American and has rapped about life in Atlanta.

Did he really lie?  He's been in the US for more than half of his life and I think that's safely a point where you can decide that you're not really from your country of birth.