Oliver Callan has taken on the Ice Bucket Challenge after he was nominated by RTÉ's Sharon Ní Bheoláin last week. 

The comedian undertook the challenge last night on Saturday Night with Miriam and immediately nominated the presenter herself.

O'Callaghan didn't shy away but rather ended the current series of the show by performing the challenge and raising over €5,000 for The Irish Motor Neurone Disease Association (IMNDA), a charity which she has supported for many years. 

O'Callaghan then nominated Mark Attride from Laois who has MND and is due to do the challenge today and Michael from micksgarage.com who donated €2,000 to IMNDA via O'Callaghan's MyCharity page.

You can donate now to IMNDA via Miriam O'Callaghan's MyCharity site here: www.mycharity.ie/event/saturdaynightwithmiriam/