Britney Spears is showing off her svelte and toned bod some more.

She has posted new photos on BritneySpears.com of her working up a sweat as she preps for her upcoming world tour, which kicks off March 3 in her home state of Louisiana.

In the latest shots, Spears dances and claps in workout gear as she rehearses with her tour crew. (Jamie King, who choreographed her 2000 tour, will join Spears again on the road.)

Spears has shed 20 pounds in recent months, whittling her waistline to its trimmest in years, thanks to two-hour cardio-and-strength-training workouts three times a week (on top of dance rehearsals), Us Weekly recently reported.

“It’s a nonstop workout,” Bally Total Fitness trainer Steven Boggs, who has worked with Spears, recently told Usmagazine.com of the routine, which includes moves like shoulder presses and jump squats.

After several years of custody battles, estrangements and high-profile meltdowns, Spears reports life with all family members is calm and pleasant. Britney recently told OK! magazine that she is focusing on family life and introducing her sons to their new cousin. 

“She’s going to come out here for the kids’ birthdays,” Spears, who lives in Beverly Hills, Calif., says of Jamie Lynn in the Aug. 25 issue of OK!. “It will be the first time the cousins meet. I’m sure the boys will be like big brothers to Maddie,” who was born June 19.

Britney did say she was a little shocked to learn of her sister’s pregnancy and that being an aunt is a little weird. Well I hope she continues do well and manage to stay out of the headlines. Still no confirmation on if she will be attending and/or performing at the VMA’s this year (even though the commercial shows her picture). We will have to wait and see on that. The new album is due out next year.