Britney: So Sorry for Bumbershoot Blunder

Gina Serpe Fri Jul 6, 4:31 AM ET

Los Angeles (E! Online) - There is a method to Britney Spears' madness—the Method.

The pop star has finally gotten around to apologizing, four months on, to the paparazzo on the receiving end of her umbrella rage last February, blaming dedication to her craft, not a hot temper or a chemically induced state, for the unflattering incident.

The battle royale, in which a freshly shorn Spears, dressed in white shorts and a hoodie, bashed a paparazzo's SUV with a bright green umbrella moments after paying a visit to estranged hubby Kevin Federline's home.

"I apologize to the pap for a stunt that was done 4 months ago regarding an umbrella," Spears wrote Thursday in her latest letter of truth on her official Website.

"I was preparing my character for a roll in a movie where the husband never plays his part so they switch places accidentally," she explained. "I take all my rolls very seriously and got a little carried away. Unfortunately, I didn't get the part."

There's no word yet on what part or project Spears was preparing for, whether "Kevin" was the name of the husband character, or what other rage-channeling thespian made off with the role.

The bumbershoot-bashing incident came on the heels of Spears' head-shaving, tattoo-inking binge, neither of which she has chalked up to her craft. As it was, the umbrella-wielding altercation took place just days before the 25-year-old mother of two checked herself into rehab for a third time, that time for keeps, at the celeb-friendly Promises Malibu.

Spears remained at the center for nearly a month and was checked out in March.

Now it's up to fans to divine whether the umbrella apology was genuine or the latest sarcastic missive the "Toxic" songbird has issued online in recent months.

Spears kicked things off in December, addressing her pantyless partying. Spears wrote that she "probably did take my new found freedom a little too far. Anyway, thank God for Victoria Secret's new underwear line!"

In April, Spears fired off another pseudo-sorry, this time taking the form of a video rant. Adopting an over-the-top Valley Girl accent, Spears began her diatribe to America: "Like, I saw these magazines, and they said I was pregnant, and, like, it's so true. Like, America, believe everything you read because, like, you're smart and I'm stupid."

Last month, too, Spears took to her Website to take a potshot at former clubbing pal Lindsay Lohan in her trademark witty way, including as an option for her next album, "Omg Is Like Lindsay Lohan Like Okay Like."

Spears has been in a letter-writing frenzy of late. Last week, the comeback-minded star put pen to paper in a more traditional way and reportedly wrote a poem that she then hand-delivered to her mother—along with a letter from an out-of-town attorney warning her to stay away from her children should she be on any medication that would impair her grandmotherly sensibilities.

According to Star magazine, the poem, entitled "Dear Mama," gives Lynne Spears the kiss off for both forcing her into rehab and reportedly making secret plans to see her grandchildren when they were in Federline's custody.