Britney is back.

We keep saying that. It feels like, over the past couple of years, we've said that with a lot of different looks on our faces. Britney acknowledges that she's had some tough moments. "I'm a smart person ... what the hell was I thinking?" she says.

She may have to prove that "smart person" thing. Well, she said it in her upcoming interview and documentary on MTV: Britney Spears 'Sets the Record Straight.' Let's see if she does!

Britney Spears 'Sets the Record Straight' airs on MTV on November 30th at 10pm ET.

To recap (like watching the original before you go see the sequel, if you will), here are some photos of Britney Spears through the years:

Set your Tivos.