Robert Plant has been a star since Led Zeppelin's '60s heyday

Plant and his band Strange Sensation were headline acts on Saturday night line-up at the Green Man Festival on the Glanusk Estate near Crickhowell.

Folk star Joanna Newsom was making her third appearance at the event, which attracted 10,000 campers.

Green Man director Fiona Stewart said the line-up had "opened up" with folk acts mixing with indie bands and DJs.

The three-day festival also featured cinema, DJ and literature tents as well as specialist food stalls.

Founded in 2003, the festival has featured Jose Gonzalez, Donovan and the Incredible String Band in recent years.

This year's schedule also featured singer-songwriters Devendra Banhart and King Creosote, and bands like Battle, The Aliens and The Earlies, and Welsh stars including former Gorky's Zygotic Munci lead singer Euros Childs, and Super Furry Animals front man Gruff Rhys.

Something like this would normally have appeared in the south of England somewhere Fiona Stewart, festival director

Ms Stewart said: "Robert Plant is an absolute rock legend and we are honoured to have him here."

Both Plant and Zeppelin have strong Welsh connections, and she said the organisers were proud the Green Man was a Welsh festival.

"We try to bring all the business associated with the festival in from Wales," she said.

"Although people come here from all parts of the country, the festival is seen as something which promotes the beautiful scenery in the area.

"When we started three years ago, no one had ever done anything like this here. Something like this would normally have appeared in the south of England somewhere."