I dont think this is true tbh.
She was crying beforehand because she saw her kids so i think that upset her. This is just the media making up false stories from photos and trying to take a swipe at Cher and Cheryl yet again.
http://i.dailymail.co.uk/i/pix/2010/...89_468x598.jpg
http://i.dailymail.co.uk/i/pix/2010/...77_468x576.jpg