Teen sensation Miley Cyrus is getting serious about working out after fighting off internet rumors she was pregnant at 14. The actress/singer was caught off guard by the callous reports and can only imagine the campaign started when someone caught her looking a little bloated.

So the Hannah Montana star has hired Eva Longoria and Jessica Simpson's trainer Harley Pasternak to help her get in shape, according to In Touch Weekly magazine.

A pal tells the publication, "She just wants to look great. She's very motivated."

-Miley Cyrus Pictures

(This news article provided by World Entertainment News Network)