Americans have the Grammys and the VMAs. Across the pond? Music's biggest night is the MTV European Music Awards. This Saturday in Madrid, stars like Katy Perry, Rihanna, and Shakira were just a few of the famous faces to grace the EMAs and later sing their hearts out. Lady Gaga, while not in attendance, also picked up three big awards: Best Pop Act, Best Female Artist, Best Song. Click through our gallery to see all the hottest performers in their wild outfits!