He is a rapper, singer, and actor. And his real name is Daniel Dwayne Simmons III. But everyone calls him Diggy Simmons
That’s the answer I see : Well, NFS is a slang word for Not For Sure
All u have to do is belive in yourself and don't let anyone get u down.(Like Miranda sings says haters back off).Trust me the haters gonna hate hate hate (like the Taylor swift said).Hope this helped.