Leather, glitter, stilettos and a strut—voguing, the underground dance phenomenon, has seized Beijing and given China's LGBT community a "playground" to celebrate their identities. With categories including "Butch Queen Realness", "Drag Queen Lip Sync" and "Voguing Open To All", performers battled it out to win the judges' approval— scoring straight 10s—or were eliminated in cut-throat style. "It's a playground for …