It's time for a fresh round of battles for Mario and Courtney! This time they're going head to head in a pop quiz where they must finish the famous nursery rhyme. Producer Frasier will read several of the first lyrics, Mario or Courtney must buzz in to guess the correct answer. Listen back to the madness below and be on the look out for more challenges later in the week! Don't forget if there's a subject you'd like to see Mario and Courtney battle it out in hit us up on twitter! @ONWithMario!