In­sta­gram celebrity Amanda Cerny steps out onto a road in the rain and starts danc­ing in a clip recorded and up­loaded onto me­dia-shar­ing app In­sta­gram.“Sunny vibes on a rainy day,” reads its cap­tion. Mean­while, the video’s geo­tag – where it was taken – says “Sin­ga­pore, Sin­ga­pore”.

But the un­fa­mil­iar road mark­ings and right-hand traf­fic sug­gest it was cap­tured some­where else.

“Is that ac­tu­ally at Sin­ga­pore?” asks one of Cerny’s 10.5 mil­lion fol­low­ers.

Over the past week, global fol­low­ers of pop­u­lar over­seas-based In­sta­gram stars have been left sim­i­larly puz­zled.

They no­ticed thou­sands of posts tagged as hav­ing been taken in Sin­ga­pore even though the vi­su­als clearly show they were taken over­seas.

One In­sta­gram celebrity tagged a pic­ture of him­self in Dis­ney­land in the US as “Sin­ga­pore, Sin­ga­pore”.

Th­ese so­cial-me­dia stars have been ex­ploit­ing a bug in the me­dia-shar­ing app.

The geo­tag has since been re­moved af­ter it was called out by fol­low­ers.

Pic­tures and videos with a lo­ca­tion tag set to “Sin­ga­pore, Sin­ga­pore” jump more eas­ily to the top of the app’s Ex­plore sec­tion, net­ting them more views, likes and fol­low­ers.

An In­sta­gram spokesman con­firmed the bug, adding that the rank­ings of posts tagged with “Sin­ga­pore, Sin­ga­pore” were im­pacted. “We’ve now fixed the is­sue,” he said.

The “Sin­ga­pore boost”, as ne­ti­zens have termed it, be­gan a week ago when a few pri­mar­ily United States-based In­ter­net stars, such as Lo­gan Paul, Dan Bilz­e­rian and Ms Cerny, be­gan tag­ging their posts with “Sin­ga­pore, Sin­ga­pore”.