Locals suspect a famous face is responsible for the whopping sign, which has popped up on a slag heap overlooking Wrexham.
The star – actor Ryan Reynolds – has so far remained silent, despite the fingers pointed in his direction.
But Reynolds is a well-known prankster who has some very unexpected links to the town.
The Deadpool star and fellow actor Rob McElhenney bought Wrexham AFC earlier this year.
It’s Always Sunny in Philadelphia star McElhenny confirmed the £2million investment in February, writing on Twitter: “The @Wrexham_AFC handover is complete!”
And the sign appeared just a day after the club beat Curzon Ashton in their final pre-season friendly 3-1.
Residents in the town say they believe Reynolds is the man to thank for the bizarre touch of LA.
Dog walker Pete Leyshon said: “This has just got to be Ryan Reynolds doing this – who else would do it?
Michael Roberts went to investigate as the sign was built.
He said: “There were about six lads putting the sign-up. They were in a white 4×4.
“Whoever has done it has put a lot of effort into it and must have had permission to get through the gate at the back of the slag heap.”
It comes just days after Reynolds put on a film premier for emergency workers in the town to screen his latest comedy Free Guy.
The actor says he is “mortified” that he has not yet been able to visit the town since buying the club.
Announcing the takeover, he and McElhenney said: “It is a special day for the two of us to become the latest stewards in the long and storied history of Wrexham AFC.”