More than 1.57 million fans on the Chinese mainland watched the live streaming of a recent concert as eight young women from Girls' Generation, in thigh-high leather boots, black denim shorts and plaid shirts, sang and danced to the music of their hits at the Wapop hall in Seoul.

"It's exciting to know that we have many Chinese fans watching our show right now," says South Korean singer Im Yoona in Mandarin.

Chinese video websites see online live-concert broadcasting as a new growth point for their streaming services. Now, they are expanding their vision to include overseas artists.