Joining the likes of David Beckham, Taylor Swift and even George Bush, former X Factor star Olly has stepped up to take a soaking and the mischievous Essex lad put his own mum next in the firing line.
Sitting comfortably in his garden, the 'Troublemaker' singer was raring to go as he shouted "Go on son! Hit me!" before getting drenched with ice cubes and freezing water.
After taking on his challenge like a man, Olly - no doubt a little chilly and completely soaked through - ran up to the camera to give his own nominations.
Who did he choose? His old pal Robbie Williams and his very own mum... we bet she's going to love that!
Yesterday, Olly was dying to be chosen to take on the ice bucket. Taking to Twitter, he tweeted: "Haha someone nominate me I'd be well up for the #IceBucketChallenge."
Looks like he finally got his wish - and much to his mother's annoyance, we're sure!
Like Olly, Simon Cowell too took to the ice bucket while on board a yacht with girlfriend Lauren Silverman and nominated his fellow X Factor judges Cheryl Fernandez-Versini and Mel B - and the girls didn't disappoint.
Girls Aloud star Cheryl shrieked as she was drenched in icy water by her new husband, Jean Bernard Fernadez-Versini, and Mel B bravely took a soaking in front of a huge crowd of people.
Meanwhile Nicole Scherzinger found herself with a face full of freezing water and High School Musical stars Ashley Tisdale and Zac Efron doubled up to take on their ice challenge together.
This latest charity craze started in the US in a bid to raise awareness and donations for the ALS Association.
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