official site here
facebook event page here.
Metalheads are more than happy with the Sonisphere lineup. But the problem is the festival area. Although it is re-designed and enlarged, this doesn’t look like a suitable area for the festival. It is too small, I don’t know why this place was chosen. Küçükçiftlik Park is a nice place for metal concerts and I have attended so many there but damn Sonisphere is the monster of concerts… I am still wondering…