It is both. DNA and genes can make you musical. But if you don't take music classes, study with musicians, play an instrument, write music or listen to music to develop that natural talent, you will never become a musician.

Plenty of people "fake" their abilities. Hence, "fake it til you make it." And, because we need communities to thrive, you can lie your way to the top. Look at a lot of famous celebrities. They will disclose in interviews how much they lied to people in their industry, in order to seize opportunities for themselves to move into the spotlight.