During an MTV show, to promote her latest album, In the Zone, the 22-year-old singer revealed she felt "just a little bitter" after her break up with fellow pop star Timberlake.
The cheeky blonde giggled after emphasizing the words "just" and "little" and using her thumb fingers to illustrate her point.
She didn't actually use Justin's name, but as she always says he has been her only lover, it must have been him she was talking about. After she said it, she fell about laughing with her camera crew," an insider on the MTV special, "In The Zone & Out All Night" said.
Timberlake, 22, who is dating Charlie's Angels actress Cameron Diaz, 31, has long been considered one of the showbiz's sexiest men and a ladies' favourite - so much so he earned the nickname "Trousersnake".
"After she said it she fell about laughing with her camera crew. Forget Trousersnake, it's more like Trouserworm."
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