Liam Hemsworth Miley Cyrus suit dress red carpet

Miley Cyrus showed off her bangin' body alongside her equally sexy fiance Liam Hemsworth at the Australians In Film Awards & Benefit Dinner At the InterContinental Hotel in Century City.

We've seen the "Can't Be Tamed" singer hitting the gym on a daily basis, and no doubt, it's payed off big time! Miley's black cut-out dress is skintight, and we're lovin' it.

Her best accessory ... the 3.5-carat diamond engagement ring from her hunky Aussie. Can't wait to see what kind of wedding dress she picks. Lucky girl!