Yeah watching it again removed from the expectation of the bombast she delivered in Oscar performances past (Sound of Music), I really appreciate the intimate, improvisational jam band vibe a lot more, she really shines when she has to serve raw emotion and it brought out some soul in the song that was suffocated by the production in the single version. Plus, it worked as a nice counterpoint to the Rihanna performance who did the whole gown/jewels/orchestra/standing dramatically in the middle of the stage under a spotlight thing.
Also, who is the guitarist in the trucker hat sitting next to her, is he in her usual touring band? He is HOT