Britney Spears is looking great these days, but she wants to make sure everyone knows it didn't come easily. She told Glamour, "I have had to work hard at getting [my body] back to where it used to be. I used to be obsessed with working out ... But I can't get motivated right now because I'm so focused on my music."

Whether she says she's motivated to work out or not, she definitely has been working hard getting ready for her recent live performances. Dancing hasn't just gotten her in shape, but it's helped her emotionally. And, adjusting her eating (and drinking) habits has certainly helped. Still, she doesn't exactly look forward to working out.

"It isn't fun, so to do it every day would be horrible. Three days a week is cool, even two. It makes me feel good and feel like I've done something. It's important to take care of your body." She is even more aware of this now, after having two children, saying, "Recently, I started to appreciate my body a bit more from before I had kids."

The full interview will be in Glamour's January issue.