Massive Attack are headlining London's Hyde Park on July 1.
The Bristol duo are playing as part of the British Summer Time festival, appearing the day before Kendrick Lamar, Jamie xx and Florence and the Machine.
Robert del Naja and Daddy G have promised a "new and provocative audio-visual live show", collaborating with United Visual Artists.
Young Fathers, Warpaint, Patti Smith, TV on the Radio and Ghostpoet support, with tickets going on general sale at 9am on March 11.
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Dave Turner is Mixmag's Digital News Editor, follow him on Twitter