Britney Spears, Lynne Spears Get Into Slap-Fight

Cat fight! Cat fight! Meow!!!!

If you think we're a bunch of classless pigs for making light of a family's personal matters and hoping a sexy cat fight breaks out, well, hey, at least our celebrity news writers weren't indicted as part of a federal dogfighting probe like Michael Vick.

Anyway, the brewing bad blood between Britney Spears and her mother has reportedly risen to a new level - it's gotten physical.

The troubled pop princess and her mom, Lynne Spears, got into a shocking slap-fight back in mid-June that "left Lynne shaken and Britney Spears more determined than ever to cut her mother out of her life for good," according to MSNBC.

The trouble reportedly began when Lynne Spears stopped by the house of Britney Spears without an invitation on the weekend of June 15.

"Lynne barged into the house and insisted on taking the kids out to spend some private time with them," an insider tells Star. "She didn't ask or suggest... she demanded! Then she began denigrating Britney's mothering skills and losing her temper at the same time!"

What? Criticizing Britney's parenting of Jayden James? Just because the little guy looks like he's force-fed pork rinds doesn't make Brit a bad mother.

Still, it was because of the cat fight that Spears recently served legal papers against her mother, but the buzz right now is that Lynne Spears is mulling a countersuit.

LEFT: Britney Spears back when she was, like, really, really hot, like three or four years ago. RIGHT: Lynne Spears with Britney Spears' little sister, Jamie Lynn Spears.

But despite their ongoing feud, Lynne Spears doesn't completely blame her eldest daughter, who she thinks is spiraling downward into depression.

"Despite their problems, Lynne cares deeply for Britney and wants to help her," a source told Star. "She thinks anti-depressants may be the answer. Lynne feels Britney has depression, in large part because of her apparent manic behavior and problems with alcohol."

Brit's ex, Kevin Federline, was reportedly doing it wheelbarrow style with Liz Hernandez and couldn't be reached for comment. Just kidding, we totally made that up.