According to The Mirror, police were reportedly called to give a warning after hotel guests of the Fasana Hotel in Ipanema, Rio de Janeiro, complained.
The noise, evidently, was a huge factor. As was the middle-of-the-night hours of the party -- neither of which are ever good when you're staying at a hotel.
The Mirror reports that hotel guest Andre Duarte couldn't sleep and complained at 4 a.m., saying, "I'm so angry. The noise has kept us awake all night. We can't sleep. This is absolutely ridiculous. We came downstairs in our pajamas to ask the hotel to stop the party. We called the police."
Half an hour later, the party's loud music was turned off. Of course, we're betting the fans gathered outside the hotel still made plenty of noise to make guests unhappy.