On the count of three, use one word to describe your Valentine’s Day. One… two… three… terrible! See, I knew you’d say the same thing. But here’s a thing to alleviate the guilt of sitting at a dollar pizza parlor by yourself for way too long: a new collaboration from Usher and Diplo on “Go Missin’,” the spiritual successor to last year’s “Climax,” which also dropped on Valentine’s Day and also featured the two unlikely partners combining their greatest strengths—Usher’s floating falsetto and Diplo’s ear for buzzing beats. It’s maybe not as good at “Climax” because “Climax” was the greatest, but it’s well worth a Friday listen as you look up how many calories are in a cheese pizza. Happy post-Valentine’s Day.