Gareth Gates has always enjoyed a squeaky-clean image, but the pop star’s reputation has been blown apart by fresh revelations that he’s having a passionate fling with his Les Misérables co-star Katie Hall, 19.

Gareth, 25, hasn’t denied allegations that while his wife Suzanne Mole was looking after their 11-month-old daughter Missy, he’s been chasing after his leading lady right in front of fellow cast members – not once, but twice.

A source tells Now: ‘Gareth and Katie met in November and immediately struck up a romance, leaving theatre colleagues amazed at their indiscretion.’

Suzanne, 34, reportedly found out about the affair when they were caught having sex in a car.

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