A new cross party and cross media campaign, Out4Marriage.org, to support changing the law to allow gay couples to marry has launched to help spread the message that most people in Britain and indeed the Western world, are happy to "come Out4Marriage".

Out4Marriage is modeled on the hugely successful 'It Gets Better' YouTube project launched by the US agony uncle Dan Savage, where politicians, celebrities and members of the public gave hope to teenagers coming to terms with their sexuality.

Over the coming weeks, videos from high profile UK politicians from all political parties and global A-list celebrities will be published online. Each video will allow the politician or celebrity to explain why they're "coming out for marriage" and will ask viewers to join them too. It is aimed that although launched from the UK, the campaign will spread globally to ensure gay couples around the world have the same rights to marry as straight couples.

The project was conceived by PinkNews.co.uk founder Benjamin Cohen and Mike Buonaiuto, the director of the Coalition for Equal Marriage viral video.