This year, the world-renowned music festival-Rock in Rio has stepped out from Brazil and held in the sin city-Vegas. This big outdoor music party has brought many musicians and music lovers together to celebrate. The enjoyment of the fantastic live music performances was imaginable, not to mention the retro-themed venue decoration. Besides the vintage cars, old posters, neon lights…and etc, the participants all well-dressed into their own classic idols such as Elvis, Audrey Hepburn, Twiggy, Marilyn Monroe…. Following the retro trend, we adopted the trendy retro-elements: oversized round button, pleats, satin fabric and miniskirts to decorate our designs, combined with both causal cuttings and formal cuttings.