I did that routine for 3 months - its was awful. Four players rotated in 1 hour shifts and all night long the SAME songs, NO, the same PARTS of songs played. Yes, the tips were almost obscene, but you never got to finish a stinking song! The original concept came from a place in Baltimore, I believe called "Little Ditties" ... it was a low point in my career and I hated every second of it. It's loud, rude, raunchy and crowd driven. Not my cup of tea. I've seen it dumbed down on a Disney cruise and it was "better" but still a horrid act if you like music .... or singers ... or piano music.
It's all about that drink. Not my scene.