Only because people would recognize her from face or music or voice.
To replicate this you would need to put some make-up / prosthetics on to hide the fact it was her and make her sing something not particularly famous on her own.
I think the result would be the same assuming no one recognized her voice.
Serious question: where would this be? Outside of North America, I've only been to Brazil and multiple European countries, and American pop music is still ubiquitous in these places.
> The Japanese might make the best cars, the Germans the best beers, the French the best perfumes, the Italians the best pizza, but Americans make the best dreams.
> American TV, film, and music dominate the world's mass markets. While American-made computers, cars, steel and tools struggle against foreign competition, Bugs Bunny, Elmer Fudd, and Mickey Mouse are cleaning up. American pop culture is just about the biggest export the U.S. produces. For better or worse, it's literally everywhere. Every backroads world traveler has a favorite story about being lost, hungry, and hundreds of miles off the edge of any map when a friendly native suddenly appears to lead him to a hut. Crawling inside, the traveler finds himself staring at a rerun of Dynasty on the generator-powered TV and a poster of Michael Jordan on the wall.
> It's scary.
The passage is dated, incorrect (even when it was written), and oddly chauvinistic to our ears. But it contains a nugget of truth: practically all of humanity has consumed at least some American media.
Lady GaGa playing a piano in the same location is probably your best bet.
Practically no one recognises her without here insane make-up and get-ups (Which I think is a pretty smart ploy) and a piano is a piano yet she is in the same "Generally recognised superstar" category as beyonce and she is a very good pianist.