Ryan Tubridy was left in stitches after he was interviewed by 'Tommy Tiernan' on Friday's Late Late Show.
The RTE broadcaster was close to tears over the hilarious impression of the Irish comedian by Conor Moore, also known as Conor's Sketches.
The impressionist held an uncanny resemblance to Tiernan, who is widely praised for his no holds barred Saturday night chat show.
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During the brilliant segment, an animated Tubridy was in awe of Moore's impression of Tiernan.
Before he even said a word, the Late Late Show host said the similarity to Tiernan's expression was "uncanny".
"So, am I interviewing you or are you interviewing me?" Moore, as Tiernan, asked Tubridy.
"I just don't know. Jesus Christ Ryan it's f***ing confusing now, isn't it?
"You know there's two Tommys now, there's calm, philosophical Tommy and there's crazy Tommy.
"But I'd love to have you on the show sometime, ask you the real questions people want to know, like 'Why is your hair always so perfect?'
"And the real one, 'Are you really Dermot Bannon's twin brother?' I want to know so I'd love to have you on the show."
The Late Late Show posted a clip of the interaction, captioning it: "When two worlds collide...BRILLIANT @ConorSketches."
It has already received over 1,200 likes and dozens of retweets with viewers at home expressing their admiration for Moore's hilarious sketch.
Rugby star Simon Zebo said: "Genius."
One person said: "Tommy stole the show last night."
A second said: "Guy is champions league."
A third commented: "He was amazing. Pity he wasn't on longer."
A fourth person wrote: "@ConorSketches your @Tommedian is some of your best work."
Someone else said: "Bang on the money."
Another viewer stated: "Extraordinary. Callan and Rosenstock can leave the stage now."
While one added: "Love Tommy he’s brilliant."
And another chimed in: "League of his own."
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