The Summerjam 2011 line-up is gradually filling up. After Patrice, Ayo, Jimmy Cliff and Irie Révoltés, announced in early December (news of 03/12/2010), Summerjam has published a new batch of artists who will play in Cologne from 1 to 3 July 2011:
The Congos
Max Romeo
Lee Scratch Perry
Madcon
Karamelo Santo
Samy Deluxe
More info soon.
Official Summerjam website (in English).