“I’m looking for an answer in between the lines/ Lying to yourself if you think we’re fine,” Sabrina Carpenter sings, while seated demurely on a toilet.

It’s the opening night of her “Short n’ Sweet” tour’s “five fucking sold-out shows at Madison Square Garden!,” as she put it, and the toilet is in the bathroom portion of her giant stage set, which is like a combination of a 1970s TV show set and a Barbie doll dream house from the same era.

But more to the point here is the fact that Carpenter is earnestly singing a ballad, one of her signature comical takes on real-life romantic situations — in this case, “Sharpest Tool,” about being in love with a dumb guy, a follow-up on the theme of last year’s smash “Please Please Please” — while sitting on a toilet.

Make no mistake, it’s a ver

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