Laugh and Sing （笑语欢歌） 5.Laugh and sing（笑语欢歌） Laugh and sing (笑语欢歌) 8.Laugh And Sing（笑语欢歌） Laugh And Sing (笑语欢歌) Laugh and sing (欢唱) Laugh and sing(边笑边唱) Laugh and sing (边笑边唱)