Britt and Mia were only 14 when they became fast friends at the barn, bonding over their love of horses and lack of boyfriends. Over 17 years later, not much has changed between the girls (besides their relationship statuses). No matter how old they get, when "Mr Brightside" comes on, they are back to age 16 jamming out in Britt's white Camry.

Friends since their teenage years at the barn, Mia and Ali have stayed friends through it all. Lover of all things corgi and plant related, she's always there for Mia to empathize about being the only woman in their respective male-dominated fields or grab a plate of oysters to talk through whatever might be going on.

Another one of the "barn girls," Allison and Mia have stayed close despite their cross country moves. Over the years, Mia has counted on Allison for everything from complaining about graduate school stress to being the Paul Wall to her Nelly when they inevitably start to rap "Grillz." Watch out for Allison picking up Mia at the wedding, it's not a significant life event if this doesn't happen!

Although they were both English majors at CU, Haley and Mia's friendship started long before that over a bag of Hint of Lime chips and their love of horses. Innumerable hours were spent on trails with their horses and first true loves Jack and Justin. Despite Haley moving all over the world to explore and teach, the girls have remained extremely close all those years.

Mia and Aly became best friends when Aly moved across the street at age 7. On any given day, chances are Aly and Mia were crafting alien hats, practicing their productions at Spotlight Theaters (where plays were put on in the basement) or "cooking recipes" by melting hot tamales in the microwave. It's impossibly to imagine what the girls' childhoods would have been without each other.

Mia's sister in law Courtney has been part of the McNulty family since she started dating Emmett when she was in high school. She is the preeminent example of the wife and mother Mia someday hopes to be. We can only hope to have a wedding close to as fun as Courtney and Emmett's wedding, almost exactly 9 years to the day before Mia and Will's!

Luckily, Joann and Mia' s last names placed the girls in the same anatomy group at the beginning of medical school. They became friends and roommates and relied heavily on each other for those four challenging years. Before graduation they took an epic trip to Europe together and they frequently reminisced about those times during the hardest days of residency. Graduating from medical school alongside Joann will always be one of Mia's best memories.

Mia met Darcy through Will and they quickly became friends. Her and Trip epitomize "couple goals" as Mia and Will head into marriage. Darcy is Mia's go to person for all questions about everything from engagement rings to wedding planning, and really just marriage in general.

Mia and Meredith hit it off as soon as they met over a mutual love of Boulder, CO where they each spent a period of their education, Mia as an undergraduate and Meredith as a law student. Since then, they have bonded over a mutual love of good food and wine.

The younger of the Kaufman twin boys, dachshund aficionado and lover of debates, John is the best man in the wedding. Although they are now 32, John and Will still enjoy their annual trip to Water World together.

Trip and Will met in law school and became friends and later roommates. Trip and his wife Darcy, one of the bridesmaids, are close friends to both the bride and groom.

Taylor and Will met at Trinity College and were roommates for 3 years in college. Despite living across the country, they remain close by constantly competing against each other on the New York Times crossword puzzle app. Taylor and Will unknowingly own the exact same car in the same color. Coincidentally enough, their other college roommate Rip also owns the same car (!).

Mia's older brother and groomsman. Will and Emmett quickly found common ground talking about commercial real estate and their mutual excitement for the upcoming bachelor party.

Although they didn't become friends until the end of law school, Will and Tyler quickly bonded over their shared interests including commercial real estate and designer clothing.

Some might say the most mysterious of Will's friends, Will and Rip became close friends at Trinity in college after discovering a mutual interest in squash. They lived together for 2 years and have remained close friends since.