With the aggressive, ambitious bars and tension-fraught beats Kings Dead showcased on previous singles ‘94 and Over Dinner, listeners could be forgiven for assuming the Bostonian rapper/producer duo were a little intense, if not high-strung, in real life. A listen to their latest cut, however, should disabuse you of that notion for good. On new single Not a Worry, released along with a breezy official video directed by Rand Rosenberg, Sonny Shotz outlines his “hakuna matata”-esque approach to life in witty, conversational bars. Alex Mendoza puts his own devil-may-care philosophy into practice behind the boards, flipping a sample from the Zac Brown Band’s country hit, Toes, into one of the most ridiculous, yet catchy instrumentals I’ve heard in a hot minute. For this left-of-center summer jam and more fresh cuts, cop Revenge of the Beast when it hits records stores and online retailers later this summer.