Music legend Stevie Wonder moved the biggest names in K-pop to tears in Hong Kong with an emotional speech on Friday night before raising the roof with a four-song set at one of the biggest events in the K-pop calendar. Wonder, 63, took the stage with South Korean singing star Hyolyn -- described as the country's answer to Beyonce -- and Hong Kong's Cantopop megastar Aaron Kwok at the Mnet Asian Music Awards (MAMA) at the city's Asia World-Expo Arena. If we all can come together... we can make a world of difference," the American said as he received the "music makes one ambassador award" from boy band Big Bang. The speech followed an embarrassing glitch where the star was left on stage tapping a microphone that appeared not to be working after receiving his award, as the arena fell into silence and Big Bang tried to offer him a microphone that worked.