Britney Spears was reportedly so furious when she saw saucy text messages from another woman on her Brit beau Adnan Ghalib's new 300 pounds iPhone that she flung the thing in to her pool.
The couple are then said to have had a blazing fight, following which she gave him the boot.
An insider revealed that Britney had confronted Ghalib after two video clips that featured him with mystery girls found their way to internet blogs.
"There were about a dozen from one girl, all sent on one day. They were pretty saucy stuff with sexual references ó certainly not the sort you'd send to just a friend," The Sun quoted the insider, as saying.
"Britney lost it and started yelling.
"She was demanding to know who sent the texts and shouting, 'What's this about? You're cheating on me'.
"Adnan said the girl was just a friend, but Britney got more and more angry. Then she told him, 'That's it. It's over'.
"Just before she told Adnan to go, she took the phone and threw it in the pool right in front of him. He didn't even bother trying to get it out of the water," the source added.