She should have gone up with him and said something after him, because watching this video, and hearing her voice quiver and break because she's trying so hard not to cry, you can see it's actually genuine emotion, whereas when he went up on stage, a lot of people thought they were crocodile tears and that it was all just for publicity. Hopefully anyone who doubted her (myself included) will see this video and realise she was genuinely crying, and not faking it.
it was really amazing, and she gave up her most amazing moment to do this 
