Britney recently had a girls night, Tweeting fans a picture of her and a girlfriend all dressed up before an evening out on the town.

It’s unclear WHAT Brit Brit was up to, but this picture of her hanging with Nicole Richie might give a little insight.

Richie gushed about Britney on The Tonight Show with Jimmy Fallon last month.

“Britney Spears came out when I was 15, and this was like the last time in my life that I was like a die-hard fan… that love never went away. Like, when I see Britney Spears I turn into my 15-year-old self. I can’t even handle it.”

What do you think they’re talking about?

See the snap below:

Britney And Nicole Richie Hang Out