Also, her performance during the Oscars[when?], even if it wasn't one of her songs. THE VOICE!
"Seven Devils" live at her latest tour. See Seven Devils (Live at York Theatre) HD on Youtube and prepared to be blown away by her vocal skills and how the song has so much..MORE..to it live.
"No Light, No Light" performed live at the 2012 Brit Awards, complete with Incredibly Long Note.
Her live shows in general, taking requests from fans, goofing off, big vocal moments, the moments when everybody's singing along which is rather often.