An inquest finds Lilly-May Page-Bowden, five, died of natural causes but she could have survived.
The exhibition features dozens of illustrations, including watercolours and oil paintings.
The rapper, who last played at the festivals in 2013, will appear on the line-up alongside Haim, Giggs and You Me At Six.
BBC News wants your views on the 62-mile route
Would you like to see your local music venue celebrated? Do you know an influential singer or producer who deserves to be recognised?
Brighton take advantage of Newcastle's slip-up as they beat Reading to go a point clear at the top of the Championship.
Boss Jaap Stam vows to keep faith with his playing style as Reading approach a difficult period in the Championship.
About these results
As BBC Radio 5 live
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