Crucial quote I missed

When Obama finished his speech and raised his glass to the Queen, you can faintly hear the Queen telling him, "First the anthem." Due to the time limit, however, it looks like I can't add that crucial piece of info into the article. But I just want to mention this, in case curious readers want to glean as much info as possible about this delicate conflict between the Queen's adherence to protocol and the President's desire to finish his speech.