It's like seeing the old Britney-the one guys used to drool all over and had everyone singing "Hit Me Baby One More Time!"

The 32 year old "Toxic" singer looked fabulously fit when she posted this picture of her on Twitter. She is currently on a vacation with boyfriend of less than one year, David Lucado, along with her sons 8-year-old Sean Preston and Jayden James, 7.

The singer kicked up her workouts to prepare for her "Piece of Me" show. She reveals how age has made things a lot more difficult for her.

"My body yesterday — I just felt so bad," she revealed to In Style in January. "I had to get two massages in one day! When I was younger I wasn't as likely to rehearse as hard as I do now. I'm harder on myself these days. Before, I would practice two times, and I'd be done. Nowadays, I'm very critical of myself."