Pic: The stars of It's Always Sunny in Philadelphia are in Ireland right now

The Nightman Cometh to the Night's Watch.

You may remember a few months ago when we told you that two of the greatest TV shows in the world might be crossing over, Game of Thrones and It's Always Sunny in Philadelphia.

Well it seems that things are always sunny in Westeros/Belfast because Charlie himself has been spotted in one of the cities bars and it's reported that Mac is with him (Rob McElhenney).

We really hope that Charlie had a block of cheese, 73 cats and some spaghetti in hand when this snap was taken. A word of warning though, if you happen to meet Mac, remember that he's a master of karate and has cultivated some serious mass. Heyooo!

Apparently the lads were visiting a few Irish towns on their travels and even found the time to pop into Louth also. I really hope that they're still hanging around.

Game of Thrones creators David Benioff and D.B Weiss are huge fans of the comedy show, they even wrote an episode entitled 'Flowers for Charlie', and it seems like some of 'The Gang' might be making a cameo appearance in Game of Thrones.

This isn't something new because Mastadon, Sigur Ros, Gary Lightbody and Will Champion of Coldplay have all featured in the show.

Truth be told, I'm all in favour of the D.E.N.N.I.S system being introduced into Westeros along with some rum ham, wolf cola or crowtein.

If you see any of the guys on your travels then tweet us a picture. Words can't describe how much we love IASIP.

If anyone sees mac and charlie from always sunny in belfast tonight, tweet me, apparently they're here and i want a selfie — Niall McKenna (@niall_mcken) August 8, 2015

Are Charlie and Mac from it's always sunny really in Belfast? Fuck r patz and that other guy — Patrick (@Patrick87) August 8, 2015