Stop me if you’ve heard this one:  Britney Spears walks into a bar . . . for the first time EVER.  That’s what she claims, anyway.

Britney posted a video of herself and her assistant having drinks and said, quote, “This is my first time at a bar.  First time.  I feel so fancy and I feel so sophisticated.”

She captioned the video, “So glad they took my rights away for 13 years to have a cocktail.  I’m so grateful y’all.”

FYI, Britney is 40, so she had several years to go drink in bars legally before her conservatorship started.

Check out some screen shots here.