I suppose it’s really easy to be cyncial about these ‘We are the world’ type of music superpower events, especially ones with pre-recorded content – but what else can we ask of our pop-stars? It’s likely they’d get more stick if they did nothing.
Personally I find tonight works best when the artist plays their song and strips back any over-emotion. Jack Johnson and Common both show how it should be done – graceful and respectful. There’s a skill in keeping it simple.