The Warblers were walking back from breakfast when they heard music from the auditorium.

A voice joined in, and they were stunned by it.

When you're not here I don't know what to do
I do not think that I can wait
To go over and to talk to you
I do not know what I should say

And I walk out in silence
That's when I start to realize
What you bring to my life
Damn, this guy can make me cry

It's so contagious
I cannot get it out of my mind
It's so outrageous
You make me feel so high
All the time

They all say that you're no good for me
But I'm too close to turn around
I'll show them they don't know anything
I think I've got you figured out

So I walk out in silence
That's when I start to realize
What you bring to my life
Damn, this guy can make me smile

It's so contagious
I cannot get it out of my mind
It's so outrageous
You make me feel so high

I'll give you everything
I'll treat you right
If you just give me a chance
I can prove I'm right

It's so contagious
I cannot get it out of my mind
It's so outrageous
You make me feel so high
It's so contagious
I cannot get it out of my mind
It's so outrageous
You make me feel so high
All the time

They looked around at each other. "Okay, he can sing." Jeff whispered excitedly.

"Who is it? They aren't on the Warblers." Blaine said.

"Um, we could open the door and check?" Nick suggested.

"What if we scare them away?"Jeff asked.

Nobody answered, as the music started up again.

The person sang the song again. When it finished, they heard a frustrated voice.

"Come on, I have to get this right..." It muttered.

The piano started playing, and they sung along to it.

So I walk out in silence
That's when I start to realize
What you bring to my life
Damn, this guy can make me smile

"Ugh! Why is it so hard?" The person exclaimed. The Warblers noticed what he was trying to do- his voice kept faltering on 'smile.'

Damn, this guy can make me smile

The were in shock when the boy hit the note perfectly. "About time!" The voice exclaimed.

There was the sound of someone gathering sheet music.

"Should we go in?" Blaine asked.

They all looked at each other, and Jeff tried to open the door.

"Shit." They heard the voice say. There was a quick sound of someone moving around, and Jeff finally managed to open the door.

They looked around, but the person had already left. They split up and searched the auditorium, trying to find them. The auditorium was abandoned, why someone would be in it is a mystery to them.

"We could, like, take their fingerprints off the piano?" Jeff suggested, looking closely at it.

Blaine rolled his eyes. "Yeah, let me call the FBI real quick, I'm sure they'd love to help."

"Who at this school likes Avril Lavigne?" Wes wondered.

"Woah..." Nick said, looking through a folder he had found. "They have all the Warbler sheet music. A copy of every song we've done since freshman year."

"Maybe they want to be a Warbler? We could hold open auditions?" Blaine suggested.

Everyone looked to Wes. "Normally I would disagree, but we need them on the Warblers."

"Should we tell them to audition with an Avril Lavigne song so we can match up the voice?" Jeff asked.

(Contagious by Avril Lavigne)