Emmerdale viewers were left confused as they spotted a familiar face at the start of Monday's show.
Hollyoaks' Cindy Cunningham made an appearance in the Dales as a fashion influencer on social media, called C!ndy$tyle.
In the episode Amelia watched a video on her phone of "this woman from Chester, never wearing the same outfit twice" who fans instantly recognised as the Hollyoaks star.
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And many viewers took to Twitter to share their excitement.
Matthew said: "Oi! Cindy from #Hollyoaks - you're in the wrong soap! #Emmerdale."
Stephen said: "I’ll never get over the fact that Cindy from # Hollyoaks just appeared in #Emmerdale."
Jason commented: "Does Cindy get paid twice for being in 2 shows? #emmerdale #hollyoaks."
Faizal said: "#Emmerdale Seeing Cindy from #Hollyoaks briefly on the show was epic. And YES Cindy's attitude RE Climate Change needs to change!"
The crossover was actually intentional as it was part of ITV's Climate Action Week.
ITV said: "For the first time in British television history, the country’s soaps and continuing dramas including Coronation Street and Emmerdale are joining forces to highlight the issue of climate change and environmental issues, an idea originally conceived by Jane Hudson, Emmerdale’s Executive Producer."
Viewers should expect to see plenty of Climate Action focus over the next week.
Emmerdale airs weeknights at 7pm on ITV, with an extra episode at 8pm on Thursdays.
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