By Leah Greenblatt
November 10, 2010 at 12:00 PM EST

Image Credit: Joseph Anthony BakerAm I the only one who didn’t know that Swift-T played the piano? In the midst of a dry-ice mist palace borrowed from the Phantom of the Opera set?

She may never hit every note live, but country music’s million-dollar baby offered a pretty, tremulous version of her bittersweet forgive-me ballad “Back to December” on the CMAs stage, demurely dressed in a winter-princess white gown and less-demure screen-siren-red lips. And it grew more assured as she went on, backed by a classical strings section, that piano, and little else.

Hard to tell, though, at the end, what that perplexed-looking “What?” she mouthed as the curtain came down was for. Theories, readers? I smell conspiracy! (Update: A rep for Swift tells EW, “She was just happy about the big standing ovation!”)

Watch the performance below.

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Best and Worst of the Broadcast

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Full list of winners