When you go to a concert you know you're in for a good time, but have you ever really thought about the types of people you see at concerts? I have, and just being to one myself I tried to notice them a lot more. This is a list configured by people I met at a P!ATD concert.

1. The O.A.D.'s (Original Audience Dwellers)

They have been there since the first EP and aren't planning on leaving anytime soon. You can tell who they are because they're always sporting their 2001 tour shirts and they're old enough to drink, but know when to stop. They'll even break out those old band wristbands. They've been through it all. They may have even been any of the other 4 people on this list but they know it's their time to stand back and let the younger crowd get their taste of excitement. They usually are the chill older crowd that is standing in the back holding their cold beers and bobbing their heads to the beat of the music. I know, I hope to be as cool as them someday too.

2. The Picnic-ers

These guys are the ones that come prepared to sit in the grass and chill. They bring big fluffy quilts to sit on and they are totally ready to chill even further behind the O.A.D.'s. If the concert is inside these guys can be found sitting around the merch table or at the bar, even though some of the aren't old enough. These guys may have even been the ones to bring the devils lettuce to the party, if you catch my drift. They also don't really mind spending 5 bucks on pizza and 4 bucks on water because at the end of the day they only came for the sound of live music and the sound of live music alone.

3. The Expert Mosher's

You know who these people are because 1. they came way earlier than everyone else to secure their spot, and 2. they are the ones that are always standing first class at the front of the pit. They have been to a million concerts and have devised the perfect plan to make sure that they can see the sweat flicking off of their favorite singers. They don't even mind getting pushed up a little against the divider because that just means that they can be that much closer to the people they came their to see. They may be a little crazy, but hey, some of the best people are. And if you end up in the back of the mosh, then better luck next time kid. I'm sure you can be an expert someday.

4. The Documenters

These people want to remember ever piece of what went on that night. They hold their phones in the air and take as many pictures possible. They even post a whole bunch of stuff on snapchat to download later because their phone is running out of memory space. and if that's not enough, once their phones die they have a spare camera hanging around their necks to capture the moment even further. These guys are usually stuck in the middle of the mosh and I hope that they feel bad for temporarily blocking the view of the people behind.

5. The Groupies

They've been to almost every concert on this tour, and any other tour their bands have gone on so far. How they pay for the tickets, gas, etc. beats the hell outta me, but they do it. They own every CD, a T-shirt from every event, and always dress perfectly for the occasion. They aren't as lucky as roadies yet but they definitely have the upper hand and are in the running to become one when the position opens up. Sometimes these guys even know the band personally, and don't care if they hog the bands time at meet and greets.

All of these people have one thing in common. They love the music that they went to go see. So, which one are you?