RTE Late Late Show viewers were feeling festive tonight when Michael Buble appeared from the shadows.
The Canadian star was hiding in the audience, disguised in a leather jacket and wearing glasses.
Read more: Late Late Show: Ryan Tubridy teases duet with Michael Buble
He admitted that singing with Ryan Tubridy was his most nerve-wracking performance to date after a hiatus from the music industry.
Buble stole the hearts of the nation when he announced that his wife is now expecting their fourth child.
Many feared that snow was on its way, when the Christmas carol superstar took to the stage.
Others at home had constructive criticism for the doting dad.
Here's what they had to say:
"Cheaper to get that Michael Bubbles lad on now than at Christmas"
"Do they know it’s Christmas time at all?"
"How come yer man is out of hibernation so early???? What’s going on??? It’s cos of climate change, isn’t it? "
"Ooh a bit flat there Michael"
"Turned on the tele to see Ryan Tubridy singing…immediately vomited everywhere."
"If Mickey Bubbles was shot for singing he’d die innocent."
Read more: Keith Barry defends himself after Late Late appearance considered 'pure muck'
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