Thousands of people from across the world have attended the fifth annual 'red-hair day' celebration in Holland where revellers were asked to dress in the colour to participate in various activities including workshops and a fashion show, a media report said Monday.

The two-day event began Sunday in Breda city in southern Holland, Daily Mail reported on its website.

The main criteria of attending the festival is that you have natural red hair.

The event focusses not just on the colour of the attendants' hair, but on everything to do with the colour red with numerous activities organised.

They include individual photoshoots, a fashion show and even lectures about ginger hair. There are also music events and a group picnic.

The festival started in 2005 when Dutch painter Bart Rouwenhorst decided he wanted to paint 15 redheads.

He advertised for models and received 150 replies.

Gradually over time, the festival has become bigger. Last year more than 4,000 attended.