"4 August 2015 - Los Angeles - USA  **** STRICTLY NOT AVAILABLE FOR USA ***  Piers Morgan returns to American's Got Talent as a guest judge - and ends up defending Mel B's honour! THe British star was sat between Mel B and Heidi Klum for the 'Judges Cut' show on AGT. And he ended up losing his cool with act Kayvon Zand, 28, from New York after the singer told Mel B she was: 'No Whitney Houston."" Zand was annoyed after all the judges pressed their buzzer - and started arguing with them. But he took offence when former Spice Girl Mel told him his voice was not technically ready and he cut her off and asked: ""Do you think youíre a better singer than me?î The crowd booed as Morgan stepped in and told him he was a brat and that he should show Mel some respect. Zand then tried to retract his nasty comments, but only dug himself in a deeper whole by saying,:ìSheís not like a Whitney Houston but sheís a good singer.î Also on the show Morgan got up and danced with Klum after boasting he was the"
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