Well known polka ... let me see...
How about the song that goes "Oh, you New York girls, can't you dance the polka?" But I suppose even that's not really known outside folk circles. Or "Little Brown Jug", which is well known but hardly "current".

Then again, I'm not quite sure what you mean by "current popular tunes rather than folk tunes". Call me an old git, but does current popular music have "tunes"? I know some slower songs do, but anything fast enough to dance to tends to lack any obvious tune, far less any attributes of the polka.

Marje