Adele Oscars 2013 Performs Skyfall Theme Song
It was a perfectly fine performance, although I wondered if because of the separate performances by Shirley Bassey earlier, there was a bit of competition that left Adele behind. While Shirley Bassey received a standing ovation (deservedly so) for her Goldfinger tribute, Adele didn't really seem happy at all. No smiles or anything.
But I'm pretty sure, this is not the reason: