SoftBank Corp CEO Masayoshi Son dumps a bucket of ice water onto himself as he takes part in the ALS ice bucket challenge at the company headquarters in Tokyo on August 20. The Ice Bucket Challenge is aimed at raising awareness of – and money to fight – Amyotrophic Lateral Sclerosis, more often known as ALS or Lou Gherig's Disease. It involves participants dousing themselves with buckets of ice water, and then nominating others to do so. Nominees may also choose to donate to the cause as a way out of doing the challenge, or in addition to doing it. Reuters/Toru Hanai