Glastonbury Festival has announced a further 12 artists for this years festivals these include Primal Scream and Mumford & Sons. 

It is understood that Primal Scream will headline the Other stage on the Friday night, with Mumford & Sons playing the Festival's second stage before them.

Other acts confirmed are Anna Calvi, BB King, Big Boi, The Chemical Brothers (live), Crystal Castles, Friendly Fires, Fleet Foxes, Gruff Rhys, James Blake, Janelle Monae, Laura Marling, and Warpaint.