Teen sensation Miley Cyrus is getting serious about working out after fighting off internet rumours she was pregnant at 14. The actress/singer was caught offguard 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."