Britney Spears has made more headlines in her attempt to regain her title as queen of pop.

This time the troubled mother-of-two was acting erratic on the set on her new video �Give Me More�

According to sources Brit, who was sporting torn fishnets and tiny hot-pants for her role as a sleazy dancer in the video � looked wide-eyed and unsettled during filming.

"You could see she was getting a bit wobbly, but no one expected her to throw a complete fit" a souce told TMZ "Suddenly, she was in floods of tears and stormed off set. She eventually came back but was sobbing hysterically."

After ten long hours of Britney struggling with her dance moves - bosses decided to end the shoot � declaring it a disaster.

Later on that evening the pop-tart was spotted hitting Hollywood hotspot Club One - with a mystery man in tow. 

�Britney was looking wasted� a source told the Daily Mirror �She�d kept the bloke by her side all night.�

A source close to Spears added: �She could squander her chance to get her career back on track.�