The much-hoped-for Adele comeback has been confirmed, and Nicki Minaj has been on the books for a while, but today the Grammys added two more performers to the lineup: the Boss, who will presumably perform his latest ode to America, “We Take Care of Our Own,” and Katy Perry. The smart money is on Katy doing a stripped-down, totally emotional version of “One That Got Away” to remind you that yes, she just went through a breakup, and yes, she still needs that sixth No. 1. But will she rock the old-lady makeup? Walk the carpet with Diego Luna? Katy Perry deserves a little Diego Luna, frankly. One more Grammys question: Will Taylor Swift’s actual performance, like this promo, involve beatboxing? Because that should be, ah, interesting.