's lips.however, his lips had just been affixed to Bai Yu's lips when suddenly there was a bang.colorful fireworks bloomed in the sky.that's what their school put on to celebrate its 50th anniversary....all, a group song, not sung by Bai Yu alone.when Bai Yu finished singing his own part, another person continued to sing.Bai Yu's excellent singing obviously shocked the person who sang this sentence n...