Other acts announced include The Horrors, Jimmy Cliff, The Cribs, The Presidents Of The United States Of America and Martha Wainwright.

BBC: Hop Farm Festival: Scaled-down Kent line-up named

This spring, NPR Music and All Songs Considered webcast a live concert by Neko Case, with an opening performance by Martha Wainwright.

NPR: Tuesday Music: Martha Wainwright

Wainwright and McGarrigle's two children, singers Rufus Wainwright and Martha Wainwright, lend their vocals to the Poole tribute album, High Wide and Handsome: The Charlie Poole Project.

NPR: Loudon Wainwright's 'Charlie Poole Project'

One album I completely missed when it came out last year was the self-titled debut release from Martha Wainwright, the sister of cabaret-pop singer Rufus Wainwright and daughter of folk artists Loudon Wainwright and Kate McGarrigle.

NPR: Tuesday Music: Martha Wainwright