Celebrities take part in the ALS ice bucket challenge

Oprah Winfrey - A-list celebrities including "Mirrors" hit-maker Justin Timberlake, Canadian popstar Justin Bieber, TV show host Oprah Winfrey, host of American idol Ryan Seacrest, Aussie rapper Iggy Azalea, English fashion model Cara Delevingne and many more have all taken part in the ALS ice bucket challenge, designed to raise money and awareness for the neurodegenerative illness ALS also known as MND - Tuesday 19th August 2014 (2 Pictures)