I always like the song For Good, even though I have not watched the classical musical, Wicked.

Gotta watch it soon, but anyway, this song is plainly music. In fact, a very good one.

This is the first version that I've listened.

And there comes the glee version.

Personally, I prefer the Sam Tsui and Nick Pitera version, as there's more harmonious lines than the Glee's version.

But the glee's version of the song is very clean.

P.s: After listening to both versions again, I find that Nick's voice is better with Rachel and Sam's better with Kurt. Hmm. Interesting huh?

"NFTB"