The Hemsworth family certainly goes all out for parties. Over the weekend, Liam Hemsworth and his fiancée, Miley Cyrus, attended an '80s-themed birthday bash for his older brother Luke. While Miley channelled her inner Madonna with a graphic tee, a black miniskirt, and fishnet stockings, the Australian actor went all out with short shorts, a fitted vest, and long wig. As for the birthday boy, he celebrated his decade of birth by dressing up as the comic book and cartoon character He-Man. His wife, Samantha, even shared a few Polaroid pictures of the rest of the partygoers on Instagram. We can only imagine what kind of crazy reception Miley and Liam will throw for their wedding.