No, she didn't challenge Lynne Spears to a dance-off, a la the hit 2004 film, You Got Served. Though given Britney's physical deterioration, it would be a tough matchup at this point.
Exclusive photos from X17 show Britney Spears handing papers to her mother, Lynne, outside a trailer Thursday, then walking away as Lynne sits on the steps, shocked.
Although one report identified the papers as a restraining order, TMZ now says that Britney Spears actually handed her mother a letter from an out-of-state attorney.
According to TMZ, the letter asks that Lynne stay away from Britney's sons Sean Preston, 22 months, and Jayden James, 9 months, if she is taking any medications that might cause her to be impaired.
Later, when asked by X17 what the papers were, Lynne Spears joked, "It's a love letter."
Lynne later clarified: "She did not serve me."
Not the way she served J.R. Rotem, at least.
Britney Spears, 25, handed her mother the document on the Valencia, Calif., set where her sister Jamie Lynn Spears, 16, was filming her Nickelodeon TV series, Zoey 101.
The New York Post reports that the train wreck learned about her estranged mother's whereabouts from paparazzi camped outside her Beverly Hills home.
Britney Spears then drove to Valencia with her sons in tow.
In other Spears news, a source close to Kevin Federline says that the great K-Fed has resisted signing divorce papers due to concern over Britney's post-rehab boozing.
Sources close to the pair also confirm to TMZ that the Britney Spears - Kevin Federline divorce has most definitely not been finalized.
Federline won't sign a final property settlement agreement and is saying that before he does, he wants proof that Britney Spears can handle joint custody.
At the moment, Britney and Kevin have a 50-50 deal where each has the kids for half the time.
So is K-Fed making a money play? Maybe. Is Britney Spears insane? Probably.
What's next? Stay tuned.