The legendary ex-Smiths man and popular Britpop group have been added to the bill for the Derbyshire festival, running 31 July to 2 August.
Primal Scream have announced their special guests for their Teenage Cancer Trust show next month. Echo And The Bunnymen will join Bobby Gillespie and co at the Royal Albert Hall on Thursday March 21.
This year's shows have been curated by Noel Gallagher, who has taken over from Roger Daltrey.
It's the first time The Who frontman has let anyone else take control of the charity event - which has been taking place annually since 2000.
Ryan Adams, Paul Weller, Kasabian and Noel Gallagher himself are among the other headliners - with Noel being joined on the bill by Graham Coxon and Damon Albarn.
Meanwhile, Kasabian have announced two warm-up dates to get them in the mood for their headline slot. The band will play the Dome in Doncaster on March 19 and Plymouth Pavilions on March 20. Tickets are to go on sale at 9am on Friday February 15.
The line up for the gigs in March is:
Tuesday 19 - Ryan Adams plus special guest Beth Orton
Wednesday 20 - An evening of comedy with Russell Brand, Noel Fielding and very special guests
Thursday 21 - Primal Scream with Echo And The Bunnymen.
Friday 22 - Kasabian plus support from Dark Horses
Saturday 23 - Noel Gallagher plus special Guests including Damon Albarn & Graham Coxon Plus guest Gruff Rhys
Sunday 24 - Rizzle Kicks, Labrinth.
Monday 25 - Paul Weller plus special guests Palma Violets.