A group of "stupid Turkish so called hackers", and the music is a some Turkish pride song. And Don't let the Islamic or Arabic words fool you. Hacking is like forbidden in Islam especially if the website is for the better of humanity.
I hope you could fix the problem as soon as possible and try to be secure.
--
Saadaldine AlSaidi
IT Manager
AlShora International
Tayyouneh Rotary
Old Saida Road - Princess Buldg.
Beirut - Lebanon
Tel: +961 1 391140
Fax: +961 1 381140
Mob: +961 3 934285