Nicole Scherzinger burst into tears on 'The X Factor' yesterday (19.07.12).
The brunette beauty - who is reportedly struggling to save her relationship with Formula 1 star Lewis Hamilton - broke down during the Boot Camp stage of the ITV1 singing competition in Liverpool when a contestant performed a romantic love song.
A source told the Daily Mail newspaper: ''She's had a tough week and an emotional song set off the tears. But she's a professional. After a break, she got back to work.''
Newly appointed 'X Factor' judge Nicole tried to hide her tears, but filming had to stop and it took three make-up artists to reapply her smudged cosmetics.
The contestant in question also tugged at the audience's heartstrings, and the crowd gave them a standing ovation.
The former Pussycat Doll, 34, is said to be devastated after her long-term boyfriend Lewis was caught with 10 girls in his hotel suite last week and thinks his actions were disrespectful and hurtful.
A source said: ''Nicole's confiding in pals that she thinks it might be time to call it a day. It's a long distance relationship, he isn't ready to settle down and they're both working non-stop - she's tired of fighting for it and feels it just isn't working.''
Fellow judges Louis Walsh, Tulisa Contostavlos and Gary Barlow rallied around Nicole to console her.
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