The Islamic call to prayer, called the Azan, occurs five times a day and it coincided twice with the concert. Bieber halted the concert for both.
Users on Twitter said this is not a common occurrence in Turkey, even among Muslim music artists.
The fact that Justin Bieber stopped his show in Turkey for the adhan when Muslim artists don't even do that is really commendable— Areej Moghni (@its_just_areej) May 3, 2013
Wallah I rate Justin Bieber after hearing that he stopped his concert TWICE to honor Muslim prayer, Even Zayn Malik wouldn't do that tbh !!— Sammy ♥♥ (@sam_teezee) May 3, 2013
E! reported that fans were pleased and surprised when he stopped the concert.