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.