James Hetfield is one of the most respected frontmen in the history of heavy metal. He’s the singer, rhythm guitarist and primary songwriter for Metallica.
Myers Briggs profiles of well known and famous musicians.
ENTJ musicians are not especially common. It took some searching, but I’ve found one: Gene Simmons of KISS. Gene has often been mistyped as ESTP, due to his hedonistic image, and propensity for self promotion (traits that have sometimes been associated with ESTPs, who use extraverted sensation and introverted thinking as their primary functions).