The One Showfans were all making identical observations during Tuesday's edition of the BBC programme.
Alex Jones and JB Gill presented the show and invited guests Catherine Zeta-Jones, Luis Guzman, Diane Morgan and Alex Scott onto the famous green sofa.
Despite Catherine and Luis appearing to discuss the second series of Netflix's hit programme Wednesday, viewers found themselves somewhat distracted by the actress's looks.
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Heading to X, one viewer remarked: "I read people talking about CZJ, but didn't realise she was on the screen until she spoke."
Another posted: "Catherine zeta jones looks unreal." A third penned: "Catherine Zeta Jones is morphing into Morticia Addams."
During her appearance on the programme, the 55-year-old discussed her part in Wednesday ahead of the upcoming series, which is scheduled for release on August 6.
Whilst fans will witness many of the original cast members returning to the fictional universe of the Addams Family, there are expected to be some fresh faces, including Joanna Lumley.
Joanna will portray Grandmama Hester Frump, Morticia Addams' mother. However, Catherine admitted she was initially nervous about collaborating with her, reports Wales Online.
She revealed to Alex Jones: "You have no idea! On an international Dame Joanna is admired, revered. But for me, being a Brit being a Welsh girl like you Alex,for me it was like, my Queen.

"I'd never met her, I'd never worked with her, and there was a time where I thought, 'Maybe I shouldn't'. Because I'd be devastated if she's not the kind of woman or artist you know, sharing as an actor. She was everything and more."
Gushing about Joanna's performance on Wednesday, Catherine told the two BBC presenters she's 'so mean' in the series.
She continued: "So, now we have my character Morticia, and we have this fantastic relationship between Wednesday and the matriarch.
"Now comes Joanna's character, Grandma Frump, and we have that dynamic. We have this triangle of three generations of kooky, crazy, wonderful women, and it was a treat."
Wednesday, season 2 will premiere on Netflix in two parts: on August 6 and September 3.
The One Show is available to watch on BBC iPlayer
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