Pet Shop boys performed alongside the K-Pop girl group f(x) at this year’s Mnet Asian Music Awards, which took place last night in Hong Kong. The two acts wore matching outfits that kind of look like they were made out of black plastic bendy straws, and together they performed a medley of the Pet Shop Boys’ 1987 song “What Have I Done To Deserve This” and their 2013 Electric track “Vocal.” At the end of their rendition, Neil Tennant thanks f(x) but accidentally calls them “xx” before quickly correcting himself. You can watch that moment, as well as out of this world incredible performances by CL and 2NE1 below.