JUST ADDED: 5 Seconds of Summer will be rocking the stage at this year's iHeartRadio Music Festival Village in Las Vegas! The band sat down with Ryan Seacrest to break the news. Click here to buy your tickets now, before they sell out!
As he performed his song "Days In the East," an image that seems to be Rihanna flashed on a video screen along with the numbers 6-6-6. The number is traditionally connected with the devil or Antichrist. Â
Check it out below.Â