I saw her rendition on youtube. I thought it´s going to be worse to be honest. If you´re not able to tell when someone is pitchy you´d be think it´s a good performance. The thing is she looked weird, like being under the influence or high AND most important of all, a national hymn should be sang in a certain way. While I agree is valid a singer changes and adapt a song to his/her voice (everyone does it and I like and expect a professional singer to do it) there are certain things, like singing a national anthem that must be done respectfully and with solemnity, the jazzy and sexy arrangement was not the problem but her body language and vocal inflections, people were laughing cause they thought it was a joke. The saddest thing is Fergie is an artist with years in the business and should be respected, people should laugh on new artists, not on veteran ones, but that´s the world we live in.