You won't believe how long these Justin Bieber fans are waiting in line to see him perform

The show is taking place on 29 March 2017 - and they've been camping outside since 3 November already, meaning by the time the show actually rolls around they'll have camped out for almost five months.

Hardcore fan Igor Artioli, a 20-year-old student, tells O Globo: "Our dream is to as close to the stage as possible, right next to our idol. We're afraid he pauses his career and we wouldn't have another opportunity to be close to him again... it's our heart telling us to do this..."

According to O Globo, the fans are in for the long haul - they've brought supplies such as food, blankets, and water, and even a mosquito zapper.

As well as the diehard Rio fans, Beliebers in São Paulo are setting up for the megastar's shows and the Citibank Hall on 1 and 2 April.