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The pop star has been criticized on social media for not having enough ice in his bucket.
Credit: YouTube
Carson Daly and Blake Shelton used teamwork to get their "Voice" co-star Adam Levine in on the fun.
Those sunglasses didn't stay on for long.
Winfrey got doused by her good friend and "CBS This Morning" host Gayle King.
The "Wrecking Ball" singer used rice instead of ice with her brother, Braison.
Jennifer Garner caught husband Ben Affleck by surprise.
Timberlake got the whole crew in on the sheninigans.
The pop star managed to stay chic.
Iron Man himself took part in the challenge.
Brace yourself J. Lo.
Even some of the wealthiest people in the world are taking part in the viral craze.
Jimmy Fallon was joined by Rob Riggle, Horatio Sanz, Steve Higgins and The Roots.
Credit: NBC
It may have been hot out, but Kaley Cuoco Sweeting still got a cold rush.
Credit: Instagram
Cuoco Sweeting's "The Big Bang Theory" co-star also did his part.
Madea on ice.
Brrr.
Credit: CBS
The "CBS This Morning" co-host stayed classy in a tux while doing the challenge in Central Park.
O'Donnell's kids had the honors of dousing their mother.
Hope the suit wasn't expensive.
Credit: Bravo
The "Spring Breakers" star almost looks like he's enjoying it.
Watch: Celebrity ALS Ice Bucket Challenges
