Sir Elton John has been confirmed to play at a special concert to promote peace across the world.

The veteran singer will play at Wembley Arena in London on September 21 for the Peace One Day charity.

The event is being co-produced by actor Jude Law and will see more acts confirmed in due course.

The charity is taking part in the Global Truce 2012 campaign, which aims to "create the largest global reduction of violence ever recorded on one day." Speaking about the event, Elton John said:

"When [organisers] Jeremy and Jude came to see me and told me about Peace One Day and the Global Truce 2012 campaign, I had to get involved and support them."

Peace One Day founder and filmmaker Jeremy Gilley said: "The Wembley Arena show will highlight and celebrate Peace Day 2012 activities as part of the Global Truce 2012 campaign and handover to Rio de Janeiro Olympics 2016. I'm honoured to welcome Elton John and so grateful to him for giving his time to help Peace One Day take this message to the people of the world."