Sandi Thom does a lot of good work for charity

To be honest, we'd have thought that the time to announce a charity concert is when you've organised it, rather than when you're thinking about doing so, but Sandi Thom knows the PR industry better than we do:

"I'm organising a gig for EDA, the only charity associated with eating disorders."

The only charity? Apart from SWEDA, of course. And Anorexia Bulimia Care. And the British Nutrition Foundation. And the work MIND does, too, of course.