Ding Dong - Big Ben cuts a dash with a 'tache.

London's timely old gent is pictured sporting a funky blue moustache as he leads the way for hundreds of thousands of men who will this month fuzz-up their top lips for charity.

Over the next 30 days an estimated half a million charity supporters will take part in Movember, raising money and changing attitudes towards men's health.

This year there are already whispers of whiskers in the corridors of power, with 40 MPs signing up to grow and/or support the Movember cause.

And rumours of a "Moalition" have already circulated, with pranksters mocking up the Prime Minister and Deputy Prime Minister.

Last year more than 254,000 "Mo Bros and Mo Sistas" raised more than £22 million in the UK.

Money goes to good causes, with the charity supporting testicular and prostate cancer initiatives.

Researchers said one in nine men is diagnosed with prostate cancer in the UK - one man is diagnosed every 15 minutes.