The day diva Coco Lee made singer Rainie Yang cry

Taiwanese singer-actress Rainie Yang broke down in tears during rehearsals for her recent concert in Hong Kong.

The reason: Yang, 28, was overwhelmed that one of her idols, 37-year-old Chinese-American diva Coco Lee, was sharing the stage with her.

Over the telephone from Taipei, Yang says in Mandarin: "I couldn't believe that she was a guest star at my concert. I was so happy, I cried."

Yang will perform at The Max Pavilion @ Singapore Expo on Saturday, as part of her Rainie Yang Love Voyage world tour.