Taylor Swift probably thinks that she invented the whole "girl squad" thing, but you and your friends have been the ultimate squad since day one. Every girl has her squad, and no squad is complete without these staple 15 friends!

1. The one with the killer Instagram backdrop.

Once your squad has finished getting dolled up for a night of recklessness, it is absolutely required that you all be photographed while in a (mostly) sober state. Your days of amateur Instagram pics taken in front of closets or with classy bathroom tile backdrops are long gone thanks to your friend with that $50 boho tapestry from Urban Outfitters.

2. The ridiculously photogenic one.

Chances are, the one who is flawless from every angle is the one whose room is literally your designated area to take pictures. This girl has no bad side, has probably never had a pimple rear its nasty head upon her perfect skin, and, for God's sake, she even looks gorgeous when she uses those terribly unflattering Snapchat filters.

3. The food enthusiast.

This gal is essentially a regular at every Chipotle, Starbucks and local ice cream shop within a 15-mile radius. She follows several Instagram accounts dedicated to "food porn" and even though she denies it, you know she's got a folder of screenshots of brownies and cheesy fries on her phone.

4. The one who insists her playlists are fire.

Whether you're working out, driving, or turning up, you always have that one friend who dominates the AUX cord. Though her claims make it seem like she's the ultimate discoverer of new music and noteworthy playlists, all she really puts on is Justin Bieber and Fetty Wap.

5. The social butterfly.

For some reason, this friend of yours knows absolutely everyone on campus. Even on the way to grab brunch, she's waving hello to at least 15 people, hugging around four and catching up with every cafeteria worker serving food.

6. The athlete.

You probably wish as much as your athlete friend does that she had more time to be a normal human being. If she's not at practice, stuffing her face or napping, she's probably complaining to you about all of the above.

7. The one who thinks Drake writes about her.

This girl sings along to every Drake song but replaces every "you" with "I." She's not conceited or narcissistic, she's just convinced that she and Drake will meet each other at the altar one day and make their nonexistent relationship official.

8. The make-up guru.

You name it, she can do it. All of that crazy contouring and over-lining and baking stuff that means absolutely nothing to you are just a few of this girl's super powers. The best part? No more struggling to just wing your eyeliner anymore!

9. The grandma.

Everyone looks forward to getting rowdy on the weekends except for this girl. Chances are she's probably got quite a lot going for her, like a 4.0 GPA and an undamaged liver. She's always down to chill, especially if there is any form of napping involved.

10. The long distance BFF.

You don't get to see this friend very often, so when you do, you cherish each and every moment with her. You've been friends for years and are living proof that distance only makes the heart grow fonder!

11. The one who thinks she can dance.

Fine, you'll admit she's got better moves than Taylor, but that's really not saying much. This girl will bring everything she's got to the dance floor, and you're just too nice to tell her that "whipping" only requires one arm at a time.

12. The mom.

Where would your squad be without the love, affection and guidance from your squad mom? She's always monitoring drinks, surveying the scene and making sure every romantic relationship is marriage-worthy. Even your own mother thanks her for looking out for you.

13. The drunk.

So maybe she's right, she doesn't have an alcohol problem five days of the week. Those two days when she does, however, are unforgettable for you, but impossible to remember for her. Once she's started, she's going hard.

14. The troublemaker.

Admit it, your drunk friend doubles as your troublemaker friend. Red Bull might give you wings, but this girl gives you that extra push into being a feisty bad*ss. She has no limits, no filter and no doubt in her mind that she is the fiercest woman to step foot on this planet.

15. The soulmate.

This girl is loyal, hilarious and your main chick by all means. Getting tired of each other is physically impossible. If you're not with her, you're FaceTiming her or texting her. People would probably think you two were twins if you looked anything alike. This girl is your ride or die, and you couldn't be happier to have her in your life.