Models presented some of the most unusual hairdos at the 30th Alternative Hair Show held at the Royal Albert Hall in London over the weekend.

The Alternative Hair Show, which was first held in London's Camden Palace in 1983, is a charity fund raising event in aid of those suffering from leukaemia. The first show thirty years ago drew £7,500, which was immediately donated to Leukaemia & Lymphoma Research, the UK's leading blood cancer research charity. Since then, the Alternative Hair Show has raised over £8.5m for leukemia charities in the UK, Austria, Italy, Japan, Russia and USA.

"Fighting leukaemia is our mission. We will do everything we can to hasten the day when ALL children survive," the event's founder Tony and Maggie Rizzo, who lost their first-born two-year-old child to leukaemia in 1983, states in a feature note on the official website of the Alternative Hair Show.

The 2012 Alternative Hair Show was entitled Legends and paid a tribute to one of the legendary hairdressers, Vidal Sassoon, who was also the global patron of the show.

The event saw some of the most exquisite works of hair stylists from around the world. The show followed the announcement of the winner of the International Visionary Award that honours a new and emerging talent in hairdressing. Michelle McDermott of Ireland's hairdressing chain Peter Mark, won the 2012 Visionary Award. McDermott's model's bright red crop with feature fringe won her the award. She will now have the chance to present a show of her own at the Alternative Hair Show next year.

To mark the 30th year of the charity event, Tony Rizzo, also a hairdresser, set up The Alternative Hair Charitable Foundation in January.

"The foundation wants to build upon the success the Alternative Hair Shows have achieved over the last 30 years by establishing a focal point for hairdressing, a profession renowned for its qualities of caring and generosity, to achieve yet more in fighting leukaemia," the note reads.

Check out below photos of the Alternative Hair Show 2012 featuring some amazing hairdos.