I heard it before, but then I found out that they use music so I stopped listening to them and now we don't listen to nasheeds no more :'(, I loved the song I heard that was by them, but too bad they use music.
Yeah... a friend of mine went to one of their concerts and bought me their CD...after which i did abit of research on them.. they have way too much music... and some of their stuff is inappropriate... i dont listen to them..