Celebs We Can’t Believe Are Turning 50 This Year Thomas Jacob Black, or Jack Black, is most famous for his role in School of Rock and as the lead singer of the band Tenacious D. As a true rock star, we wonder how his 50th birthday party on August 28th is going to be! Previous Next Pages: 1 2 3 4 5 6 7 8 9 2019-08-10 spiel