Keegan Bradley poured ice water over his head because Rickie Fowler told him to
Consider this a public service announcement:
There's a trend sweeping across Instagram called the Ice Bucket Challenge. It's pretty simple: someone will film themselves pouring a bucket of ice water on their head. At the end of the video, the person will "call out" a handful of people, giving them an option of either doing the same challenge within 24 hours or donating $100 to a charity of their choice.
How did golf get mixed up in all this? Because on Monday professional supercross rider Jeremy McGrath did the challenge, then called out Rickie Fowler.