We think you're near Los Angeles

Currently in Los Angeles

Location: Los Angeles Current temperature: 58°F: Current condition: Clear See Extended Forecast

Slimmer Mariah Carey shows off pregnancy weight loss in new Twitter photo

Singer Mariah Carey is looking slim and fit judging by a new photo she posted on Twitter Sept. 30, 2011 where she's shown walking her dogs in a red tracksuit.

Carey, 40, who gave birth to twins Monroe and Moroccan Scott in April, has been dieting and working out rigorously to shed the baby weight, said husband Nick Cannon.

[UPDATE: Mariah shows off weight loss, adorable 6-month-old twins]

Treadmill and Pool Workouts

"She does long, long hours on the treadmill," said Cannon, who adds that Mariah also does low-impact cardio in the swimming pool. "Obviously [she pays attention to her] diet and eating properly."

Advertisement

Mariah, who has battled weight issues for years, was thinner than ever in 2008 after following a strict high-protein, low-calorie, low-carb diet and working out 60-90 minutes a day.

Carey's weight has since fluctuated, but husband Nick gushes that the Grammy winner is more determined than ever to regain slender 1990 physique.

"I personally think she's going to come out looking better -- looking like it's 1990!" gushes Cannon, 30.

"I think that's what she's aiming for, and I think she'll reach that goal."

, Celebrity Fitness and Health Examiner

Samantha Chang is the executive editor and co-owner of TheImproper.com, an arts and entertainment website in New York City. A graduate of the University of Pennsylvania, Samantha is a former financial journalist who enjoys running, cycling and music. Contact her at schang@theImproper.com.

Don't miss...