You can view Billie in her classy & timeless draped jumpsuit here.
You can buy Billie's jumpsuit here from the Gorgeous Couture website.
I have blogged about Billie's jumpsuit before, when Brooke Vincent wore it in black, and you can view that post here.
For the other girls' outfits in the photos linked above please check the The Only Way Is Vegas label.
Item image via Gorgeous Couture.