I’ve always known that Alicia Keys is an amazing talent even if I don’t own any of her albums. But after last night’s Grammy performance of “No One,” I will definitely be purchasing one. I don’t know that I’ve ever seen a singer (other than Celine — sue me) in such total command of not just a stage but a whole arena. Her voice was so powerful that I actually imagined it forcing all the air to the ceiling and keeping it pinned there, note after note. She was gonna make you hear her. And, I did. (I also pondered what she was wearing on the bottom half of her body and wondered when John Mayer had stopped making all those weird faces — but not the point of this post.)

So, when has a live performance sent you straight to the record store? If you need some inspiration, check out our gallery grading the acts that took this year’s Grammy stage. Keys earned an A- for “No One.”

addCredit(“Alicia Keys: : Kevin Mazur/WireImage”)