Collaboration is impossible- Britney spears

Britney Spears

Britney Spears

Britney Spears

for a surprise onstage guest appearance at Britney Spears ' "Circus" tour will have to remain content with just Brit - the pop star shot down rumors that Madonna would join her during an upcoming performance.

"Despite rumors otherwise, at the moment Britney has no plans to collaborate with anyone in the near future at any of her upcoming performances," Brit's camp said in a statement posted on her official Web site.

Britney Spears and her ex boyfriend ghalibs last calculation

Superior Court Judge Reva Goetz has asked attorneys for Spears' father to deliver paperwork so she can sign a long-standing restraining order against the paparazzo.

In January, Jamie Spears sought protection on his daughter's behalf against Ghalib, her former business manager and an attorney.

Court documents contend the trio have tried to undermine the singer's conservatorship, which was established after a series of high-profile incidents of erratic behavior.

Jamie Spears' attorney told the judge Wednesday that Ghalib hadn't filed any objections to a protective order being issued. Neither Ghalib nor his attorney have appeared at previous restraining order hearings.