Miley Cyrus wore a short, tight, and revealing cutout dress for her first red carpet as an engaged woman in LA yesterday evening. She was out for the Australians in Film Breakthrough Awards, where her fiancé Liam Hemsworth was among the honorees. Miley wore Australian designer Zimmermann for the occasion and of course accessorized with her engagement ring. Miley tweeted about this week being "filled with happiness," which had some wondering if she and Liam were planning on getting married already, but perhaps she was just excited for their first official appearance together since he popped the question. Liam has recently been shooting on location in New Orleans and Miley popped by on her way to take care of her own work in Miami. Miley showed off her bikini body at the pool in Florida and she was once again flaunting the results of all those afternoons at Pilates when she slipped into this revealing dress last night.