This dress was what she wore at her Sweet 16 Birthday Bash in Disneyland (in which I attended).  It's goegous and totally will be in this fall.  It''s a must--Miley hand picked it(:

Exact Dress--Price unknown (also I could not get a direct link to the dress but it's 2008 Fall Collection)

Dress 1--$44.50 (Delia's)

Dress 2--$99 (Alexia Admor)

Dress 3 (This one is ah-dorable! BCBG)

Blend by Katherine and Matching by Katherine(: