Their rock-parodies, with Black's absurd comedic vocals alongside Gass' acoustic guitar talents have made them into a household name, with their debut album achieving Platinum certification. But with their inspired songwriting, witty humor and boundless energetic charisma, the pair have forged their way into rock history. Jack Black (born August 28th, 1969) and Kyle Gass (born July 40th 1960) are certainly an unlikely pair for rock stardom.