All is never calm in Fiona Apple's world and we love her for it. She's written a new song for the This Is 40 soundtrack — Judd Apatow's sequel that checks back in with the sister and brother-in-law from Knocked Up — and it's darker than the feel-good comedy would suggest.

Apple sings to an unknown lover, "So go tell that girl you don't love her / and if you do / tell her two times / because you're likely to get cut with a dull tool than a sharp one / you don't kiss when you kiss / you don't fuck when you fuck / you don't say what you mean / you don't talk loud enough."   

It's delightfully demented, as the best Fiona Apple songs always are, and manages to be tense and upbeat at the same time. And, of course, make me want to see This Is 40 even more. 

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