The Rock en Seine festival is a three-day rock music festival, held at Domaine National de Saint-Cloud, the Château de Saint-Cloud's park. The French festival Rock en Seine was born in 2003. Today, Rock en Seine is one of the biggest festivals in France and among the important musical events in Europe. It happens every year on the last week-end of August, in a wonderful park just outside Paris. Every year, the festival invites the most exciting pop and rock bands, from big stars to new talents.