Wow..
That episode is really one of the worst episodes i have watched in my entire life and i watched a lot of series in my life..
In this episode is less than 5% plot story and this whole episode is 90% about singing..
This episode has more nosense singing in it than musical movies or the Series Glee..
I cant believe what they do, first they include mystery in this series and then randomly throw Musical episodes in.. no sense.. no more to say.