February 13, 2014 | 6:00am ET
The Sonisphere Festival is a touring music festival which takes place across Europe between June and August. In 2014, the festival will celebrate 40 years of at Knebworth Park, UK.
The Sonisphere Festival is a touring music festival which takes place across Europe between June and August. In 2014, the festival will celebrate 40 years of at Knebworth Park, UK.