Drake and Hanson fans don't necessarily overlap. So what do organisers do? They find a small area of New York, and put on a show for the biggest current rap sensation in the US, Drake, and teen favourites Hanson.
Police were forced to shut down the show after 25,000 people came out for the show when organisers were expecting 10,000.
The show was cancelled before Drake or Hanson took to the stage causing fans to start throwing bottles and plants at each other.
The crowd started to get out of control around 6pm and some fans had been waiting since midday.
Surely there's a long list of better ways to promote Drake's new record? Hanson? Come on.