是个女生唱的,开始好像是they got magic, they got gagic , but they don't know this thing I 'v gothttp://v.youku.com/v_show/id_XMjgxNTk5MzAxMg==.html?spm=a2h0k.8191407.0.0&from=s1.8-1-1.2这个视频的背景音乐是啥名??