X-Factor star Danyl Johnson stormed out of his singing rehearsals after a furious row with Simon Cowell's camp over his song for this week's Wham! week.
The bisexual star put Cowell's dreams of winning the show in jeopardy after he reportedly threatened to quit the show altogether when he was given George Michael's track Praying For Time.
He was seen shouting, 'Come on, this song isn't working…I hate this song', before production staff were sent on a chase down Battersea High Street after he fled his rehearsal with show singing coach Yvie Burnett.
'A few production staff chased after him to try and calm him down and make him come back but he was having none of it,' says a show insider
'They even sent a car to follow him and try to make him see sense and return to the rehearsal but he refused. He seems very angry and upset and is demanding a different song. It'll be interesting to see whether Simon Cowell agrees that the choice needs to change, or makes him stick with it', the source told the Daily Mirror.
Kent boy Johnson is now said to be in 'crisis talks' with Simon Cowell over his tantrum.
The fall out will be a further blow to his reputation after the singer is already struggling to play down claims he is 'too cocky'.