First of all, Chris O'Dowd braved the ALS Ice Bucket Challenge himself, before he nominated his and Dawn O'Porter's unborn baby.
He said: "I'd like to nominate baby O'Porter."
The clip then cut to a shot of 35-year-old Dawn pouring a small glass of cold water over her beautiful baby bump.
She later joked: “Thought we’d better mention it, before I got O’Busted!”
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Taking to Twitter before the big announcement, the vintage fashion lover star teased her fans as she wrote:
"I’m sitting in my back garden wearing speedos. Kinda cute how they just called them Speedos, isn’t it?"
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The couple married in August 2012 after they met at her 30th birthday party - and, despite being happy to share their baby news now, Dawn has previously said that she hates it when people ask her or her partner about their plans to start a family.
She said: “I think it’s a really natural question to ask and I totally understand why people do."
“But I get slightly shirty because Chris could do seven interviews on the trot and not get asked once about me or if we’re going to have kids.”
Congratulations to the happy couple!