Obtaining travel documents from the American Embassy frequently involves a wait of up to two hours, so onlookers were irritated to see the Summer Holiday hitmaker stroll in and walk straight to the front of the line.A source tells MailOnline.com: "He just waltzed through in front of everyone. He'll be throwing televisions out of hotel rooms next."A spokesman for the singer has defended his behaviour, saying: "Sir Cliff had an appointment at 8am. It was a VIP appointment which is why he walked past everyone in the queue. "The appointment was for a visa for his concert in Brooklyn on June 21, when he is supporting Morrissey."