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The fourth set of hopefuls audition in front of the judges in a closed room enviroment hoping to gain a place in the next phase of the competition where they will have to perform at Wembley Arena in front of a live audience.
First Air Date : Sep 04, 2004
Last Air date : Dec 02, 2018
Episode : 423 Episode
Season : 15 Season
Runtime: 26:14 minutes
Studio: ITV1
Country: United Kingdom
Crew:
