while i was watching Jiu (a japanese drama with Infinite's L is one of the casts), i realized that they use azan!!
"Allahuakbar Allahuakbar"
Correct me if i'm wrong but it does sounds like azan..
They use it every time Jiu appeared (Jiu is played by L who is a murderer...)
can't believe it...
www.dailymotion.com/video/xkir52_110812-myungsoos-cut-jiu_shortfilms
you can go to the link and skip to 0:40