Be it with a show tune from Les Miserables or a new-age disco number like "Hung Up," no series knows how to pull a diva-off quite like Glee. Those girls - and Kurt - were definitely on fire tonight!

While we're still dealing with the clunker that is the Tina-Blaine crush, "Diva" was the Glee's best outing so far in 2013.

While the diva theme was a convenient way to kill several birds with one stone, tonight just worked. The blend of McKinley and NYC was nearly seamless, bringing them completely together at the end with Santana's arrival on Kurt and Rachel's doorstep.

Finn needs a way to spark confidence in the glee club. Emma suggests giving them a competitive assignment, a la Will Schue. So he beams Santana in to have her shake it like a Polaroid picture for the class with four of her college cheerleader buddies.

Okay, so in the grand scheme of things maybe Finn bringing Santana in didn't make much actual sense. He has Wade-Unique and Blaine and both of them know how to be divas, so bringing in Santana for the master class was a huge plot contrivance just to get her back to Lima. 

A plot contrivance I'll ignore because of the smashing and phenomenal job Naya Rivera did on "Girl on Fire." That number will even make me forget about the "Sam's not good enough for you" line she fed both Sam and Brittany.

Sure, Brittany is her best friend and she'll always love her most, but she doesn't get to show up in Lima and break up with Brittany and then play the jealous ex-girlfriend the next time she's there. Especially not after their break-up was the most mature of the three break-ups in "The Break Up" and they agreed to see other people.

Thankfully, Brittany has moments of clarity when it comes to her own emotions and was able to articulate that she's with Sam because she likes him and wants to be with him. And then she sent Santana to New York since she's dropped out of college, which is the moment some of us have been waiting for. 

And - hold on to your hats! - the New York scenes were some of my favorites tonight.

Kurt has long been in Rachel's shadow, at least in her mind, and tonight she finally learned that her life could've been much, much different if only he hadn't thrown their very first diva-off to save his father the potential embarrassment of having a son sing songs written for a woman. 

That, dear TV Fanatics, was the best scene of the season. Maybe even the entire series.

Rachel has grown increasingly more intolerable and self-centered as her time in New York has progressed, but with that tiny bit of truth, Kurt shook her foundation enough for her to see that she's not infallible. With his rendition of "Bring Him Home," he threw Rachel back into the reality that while she's great, others are great as well. And if she wants to make it in that business and have any friends, she'd do well to remember that.

I just loved everything about Kurt tonight. How self-assured he is and confident in himself, his abilities and his choices. He's come so far over the course of four seasons, perhaps showing the greatest depth of any of our original cast members. I think he just became my favorite character.

My other favorite character, Blaine, is still trapped in this Tina Cohen-Chang-crush nightmare of a story line and he doesn't even know it because he was passed out on cold medicine while she professed her love for him. I just can't believe this story. 

Blaine said, as plainly as possible, that he's not attracted to girls. Tina's response? "Well, we're young."

And after she performed her diva number, it seemed like there was a hint of something like change in his face, or recognition. And it better not mean that in coming weeks the writers are going to make Blaine bisexual for the sake of putting him in a relationship with Tina. If Glee goes there, I will...well, I don't know what I'll do, exactly. Except be incredibly irritated and shoot daggers at the television from my eyes each week.

And finally, speaking of where Glee went that I didn't think it would go: Finn kissed Emma.

I sort of saw the glimmer of Finn having a crush on her when he called himself a "man-boy" and then checked her out, but I didn't think they would really go there. And then they did. That will be interesting heading into her and Will's nuptials next week on "I Do."

What did you think of "Diva?" Are you excited that Santana is moving to New York? What do you think about Finn kissing Emma?

Miranda Wicker was a Staff Writer for TV Fanatic. She retired in 2017. Follow her on Twitter.