The ice bucket challenge, the social media trend that's filling up your Facebook feed, has been benefitting the ALS Association, which works to fight Amyotrophic lateral sclerosis, commonly known as Lou Gehrig's Disease. Unlike planking or coning, however, this stunt aims to help spread awareness about and raise money to help fight disease.
Participants are asked to donate to the ALSA and then douse themselves in a bucket of ice water, before challenging friends to do the same. Having already raised over $41 million for the ALSA, a substantial increase from the $1.8 million raised during the same period last year, the challenge has received celebrity attention ranging from Chris Pratt to Christiano Ronaldo.
The list of celebs is far-ranging, and even includes legislator Brian Sims.
>>>Check out some of the greatest contenders on the following page:
Arrow and Doctor Who star John Barrowman takes the plunge and challenges fellow Arrow star Colton Haynes, Supernatural's Misha Collins, and Doctor Who's David Tennant.
White CollarMatt Bomer watches in terror as his sons attack him with three coolers full of ice.
Former NSYNC singer Lance Bass takes to Instagram for his challenge and ends by calling out personal assistant Lisa Delcampo, Glee star Darren Criss, fellow NSYNC singer Joey Fatone, and actress Colleen Ballinger's character Miranda Sings.
Star Trek legend and social media darling George Takei gives the challenge a sci-fi twist and challenges astronaut Buzz Aldrin, scientist Neil deGrasse Tyson, and gay Lord of the Rings/X-Men star Ian McKellen.
Challenge Accepted! How I Met Your MotherWarm Bodies Mad Men Doctor Horrible
The Big Bang Theory's Jim Parsons also took part in the challenge and threw the gauntlet down on ESPN's Andrew Perloff as well as Big Bang co-stars Mayim Bialik and Kunal Nayyar.
Newsies actor Andy Mientus trades a cold shower for champagne as he opts just to go for a cash donation and nominates fellow Broadway actors Jeremy Jordan, Krysta Rodriguez, and Wes Taylor.