X17 EXCLUSIVE - Miley Cyrus Goes Bra-Less And Shows Some Skin

But hey, when you look this great, why not?

Miley Cyrus and a gal pal went for a walk in the valley on Wednesday, and the 19-year-old singer/actress showed off her amazing abs in a cropped top and itty bitty denim shorts. In addition to a necklace, bracelets and rings, Miley was also sporting some sort of a sexy belly chain, but when it came to her undergarments, she ditched the bra and free-boobed it. I guess she really can't be tamed!

After her stroll, the starlet randomly tweeted, "I love being a fiancee," so hopefully she's getting plenty of time with future hubby Liam Hemsworth before he goes away to shoot The Hunger Games sequel later this month! Maybe she's coming with him?

Miley showed off not only her midriff but also her new engagement ring ... and ...