While we eagerly await the next edition of season 4 of Cobra Kai in Netflix, Cobra Kai cast concocted a fascinating sing-along called ‘No Mercy’… Karate kicks and autotune mashups. What more could you want? We teamed up with Schmoyoho to songify your favorite Netflix show, Cobra Kai. Featuring William Zabka, Jacob Bertrand, Peyton List,…