“She was me for Halloween,” Spears wrote. “I think I won brownie points with my kids! But seriously though… how freaking cool is that?”
Spears has also been celebrating the end of her conservatorship over the weekend, and said she has been on “cloud nine” since the court-ordered arrangement officially ended on Friday.
She wrote: “I actually got my first glass of champagne at the most beautiful restaurant I’ve ever seen last night! I’m celebrating my freedom and my birthday for the next two months! I mean after 13 years I think I’ve waited long ENOUGH!
“I’m so happy my lawyer Matthew Rosengart came into my life when he did… he has truly turned my life around… I’m forever thankful for that!