Coldplay frontman Chris Martin would, ''do anything for Glastonbury'' and helped convince Beyoncé to appear, according to the organisers of this weekend’s Glastonbury Festival.

After her husband, Jay-Z’s, controversial inclusion on the 2008 bill, Beyoncé was apprehensive about signing up for the festival.  However, co-organiser, Emily Eavis, daughter of Glastonbury founder, Michael Eavis, Chris Martin helped to persuade Beyoncé to appear.

Emily Eavis told Radio Times magazine:  "Chris is a bit wary of people knowing he's been so involved. I don't know why because it's actually cool.  Chris is as loyal as they come - he'll do anything for Glastonbury. He's really an unlikely frontman. Most people are a bit more all-consumed with their own thing."

Emily added: "Luckily, we spoke to Beyoncé before she planned her tour this year, so she managed to put Glastonbury in her schedule, then build a European tour around it."

Glastonbury festival starts on Wednesday June 22.  Other headline acts include Coldplay and U2.

See Chris Martin interviewed for Absolute Radio in video below: