VIDEO : Miley Cyrus and Liam Hemsworth Celebrate Luke Hemsworth's Birthday

Celebrities joined Luke Hemsworth for his 80?s themed 36th birthday party. Miley Cyrus and Liam Hemsworth, his brother, were a part of the gang of partiers. Liam Hemsworth dressed as the cartoon, comic book character He-Man. Liam posted on his Instagram, ?Fabulous secret powers were revealed to me the day I held aloft my magic sword and said ?by the power of greyskull.? Miley Cyrus wore a Madonna T-shirt and a leather skirt.