On another note, don't think we'll be expecting any cameos for this one. The obvious shout is either Carly Holt to do the extras on About You or if they choose to have All I Need to Hear and wheel out Tim Healy.
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Save those mid-set cameos that came around during the early stages of At Their Very Best - most notably Taylor Swift - there's been little in the way of live collaboration over the years with the kind of artist you'd have for a "Glastonbury moment".