Yusuf (Cat Stevens) and Razorlight have both joined the Peace One Day concert on Tuesday 21 September 2011, launching the countdown to Global Truce.

Tickets are now on sale for the show at London's O2 Arena and will also include performances by Eliza Doolittle, Youssou NDour, Afroreggae, Flawless and English National Ballet. Speakers will include Denise Lewis, Jude law, Monique Coleman and Peace One Day founder and filmmaker Jeremy Gilley.

The O2 Arena concert is the biggest event yet for Gilley’s Peace One Day campaign, which in 2001 led a process that resulted in the unanimous adoption by UN member states of the first ever annual day of global ceasefire and non-violence.

Jeremy Gilley said: "I’m honoured to welcome Razorlight and so grateful to all the artists for giving their time to help Peace One Day take this message to the people of the world.”

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