Led Zeppelin's Robert Plant - pictured in his younger days - is to headline this year's Green Man Festival, to be held on August 17-19.

Plant will play on the Saturday, with Friday 17's bill to be headlined by so-hot-right-now harpist Joanna Newsom. Sunday's headliner is as-yet unannounced.

Newsom's appearance at Green Man will be her only UK festival appearance of the year, apparently. Isn't she playing ATP too?

Tickets are on sale now, priced at £98 for the three days. Under-12s can attend for free. The venue is the same as 2006's event: Glanusk Park in the Brecon Beacons. For more information visit the festival website.