Our 2021 iHeartRadio Music Festival is going down next weekend, September 17th and 18th in Las Vegas and we're fired up! Mario and Gia will be in the house both nights to catch some of their favorite performers all weekend long. In honor of the festival it's time for a little iHeartRadio Music Festival Performer pop quiz! Producer Frasier plays a portion of a song by an iHeartRadio Music Festival performer and Mario or Courtney must finish the lyric for points! Check out the hilarity below and be sure to meet us in Las Vegas next weekend! Grab you tickets right here!