Britney Spears is back in a bikini.
Late last year, Spears had begun intense training to ready for her worldwide Circus tour.
Usmagazine.com reported she shed 20 pounds, thanks to two-hour cardio-and-strength-training workouts three times a week (on top of dance rehearsals).
"I have had to work hard at getting [my body] back to where it used to be," she told Glamour earlier this year. "I used to be obsessed with working out ... But I can't get motivated right now because I'm so focused on my music."
Spears will receive a special award at this year's Teen Choice 2009.
Spears, the female artist with the most Teen Choice surfboard awards, will be honored with the ultimate choice award for her "extraordinary contributions to the entertainment industry," FOX said in a statement Thursday.
The show airs on Fox Monday at 8 p.m.