The star was snapped partying in the city's Wunderbar on Friday night, delighting surprised party-goers who were eager to capture the star on film.
But Jack Robertson from Glasgow decided he wanted more than a picture and chanced his luck with a sign at the Hydro show. The 25-year-old attended the Twelve Carat Tour- which featured an elaborate production set-up of incredible lighting effects, pyro and multi-platform stages- carrying a plaque which read: "Can I Play Stay?"Talking exclusively to the Daily Record, Jack who is a huge Post Malone fan said: "The only way I can describe it would probably be, the most terrifying thing that I never wanted to end.
"I took a wee sign with me asking to play it, earlier on in the show he clocked it and gave me a wee thumbs.Post Malone welcomed Jack, to the stage to play the guitar while he lit up a cigarette for Stay. After the track, the pair removed their shirts for a hug before swapping tops and posing for a selfie.Speaking to fans at the Hydro he said: "I wanted to say, I ran around a little bit last night and uh, maybe a little too much, but I wanted to say that the people here are some of the most kind and beautiful people in the f***ing universe.“As soon as I stepped down I felt f***ing right at home, so cheers Glasgow, thank you so very f***ing much.