Saturday Night Takeaway fans are left in hysterics as Cat Deeley roasts ‘dark and dreary’ Newcastle while forcing Ant and Dec to dress in hilarious costumes during a surprise reunion

Viewers were left hysterical when Cat Deeley made a hilarious appearance on Saturday Night Takeaway, where she reunited with her former SMTV: Live co-stars Ant and Dec.

Ready to get her ‘revenge’ on the pair after their brutal prank years earlier, the new This Morning presenter, 47, announced she was going to read a horrible bedtime story.

The presenter teased that the guest duo had ‘no idea’ what she had prepared for them and left the crowd and audience in stitches after labeling Newcastle as ‘dark and gloomy’.

Cat made a glamorous entrance in a black beaded mini dress with one sleeve off and one puffed sleeve as she held the ‘dreadime story’ book in her hands.

Ant and Dec were then forced to dress up as their hilarious monster alter-egos Anty and Decky, and the duo then brought everything Cat said to life as they told the story.

While Ant donned a purple-haired cyclops, Dec also became a brown-haired monster with quirky orange hair.

And as the This Morning star continued with her terrifying plot, the guest couple received a hilarious ‘electric shock’ in the backside, causing the audience to burst into uncontrollable laughter.

‘Suddenly things took a nasty turn again. That’s how it can be in dark and dingy Newcastle, and poor Anty and Decky have been struck by lightning,’ she said, pressing a button next to her.

Terrified, Decky cried out pleadingly, “Kat, no, don’t press that!” before another strike of lightning struck them again.

“And they say lightning never strikes twice, but unfortunately, for Anty and Decky it did tonight,” Cat went to press the awful button for the third time.

But there was more to it as even Cat’s fellow This Morning’s co-host Ben Shephard also made a hilarious appearance as part of the joke.

The former Good Morning Britain star, 49, was seen in a box with a number of fake birds, leaving fans freaking out at the funny scenario.

Viewers were hysterical, with some gushing over the Cat, Ant and Dec reunion and remembering the legendary 1998 sketch comedy SMTV Live on ITV, which saw the trio co-host.

Others said they were confused by Cat’s funny description of Newcastle, while more fans simply appreciated the endlessly chaotic clip.

‘#SaturdayNightTakeaway Well done Cat Deeley with that Dreadtime story about Anty & Decky, it was so funny, especially because it said NEWCASTLE was DARK & DREARY, lol. The fact that Ant kept falling over in his costume and Dec as a leprechaun was comedy gold,” said one viewer.

‘The band is back together. Shhhhheeess back….for revenge @catdeeley @antanddec #SaturdayNightTakeaway’; ‘Anty & Decky are back and I loved it #SaturdayNightTakeaway’;

“Oh my god, Dreadtime Story was HILARIOUS. Every time Ant fell over and almost brought down the set, Saturday night entertainment was at its best. #SaturdayNightTakeaway’; ‘A reunion of @antanddec and @catdeley is what TV needs. That was invaluable. #SaturdayNightTakeaway’;

‘Literally crying/laughing during storytime with @catdeley on @itvtakeaway, not sure if @antanddec found it as funny as we did, especially in December! #SaturdayNightTakeaway #storytime #AntyDecy’; ‘This is absolutely hilarious @antanddec @catdeley @benshephard @itvtakeaway #SaturdayNightTakeaway #takeaway; “I love @antanddec and @catdeeley together. Takes me back to the SM:TV days #SaturdayNightTakeaway’;

‘Omg that was hilarious, Dreamtime Stories @catdeeley @antanddec #SaturdayNightTakeaway’; ‘@catdeeley’s #Karma vs @antanddec on @itvtakeaway #SaturdayNightTakeaway’;

‘Newcastle’s Facebook Moms rush to complain to Ofcom after Cat Deeley called it terrible on #SaturdayNightTakeaway’; ‘Kat loves every minute and I’m here for #SaturdayNightTakeaway’; ‘I feel like I’m 10 again watching SMTV and I’m here because Cat, Ant & Dec are together again! #SaturdayNightTakeaway’;

‘Love Ant and Dec’s friendship with Cat #SaturdayNightTakeaway’; ‘Cat waited years to get revenge on the boys, and it’s so funny! #SaturdayNightTakeaway’;

‘Ant, Dec and Cat on screen together (and on Saturday!) is as nostalgic as an Argos book at Christmas. #SaturdayNightTakeaway’; ‘Absolutely lovely for #SaturdayNightTakeaway tonight, great to see Cat back with the boys and laughing so much whilst they are sketching’;

‘Cat is definitely getting revenge #SaturdayNightTakeaway’; ‘OMG AN SMTV: LIVE REUNION!!! Cat & Ant and Dec #saturdaynighttakeaway’; “Well done Cat Deely. Crying laughing at #SaturdayNightTakeaway’;

‘Can’t stop laughing cat hahahahahahahhaha #SaturdayNightTakeaway’; ‘#Cat #Ant #Dec We’ve gone back to the 90s #SMTVlive #CDUK #SaturdayNightTakeaway’.

Cat’s appearance came after she made her debut as the new presenter of This Morning last week, alongside Ben Shephard.

The pair received a warm welcome from viewers following the departure of Phillip Schofield and Holly Willoughby last year.