Some of my favorite childhood memories are rooted within the walls of my local Blockbuster, where my older brother, Dana, and I would cruise through the aisles, hoping the hot new release we wanted would be waiting on its shelf. When it wasn’t, I’d hit my second-favorite section: musicals. My mom had me hooked on the classics — My Fair Lady, A Chorus Line and anything with the adorably-dimpled Shirley Temple. One of my favorites was Gigi, starring the exquisite Leslie Caron. Of course, I now realize it’s a highly problematic story about grooming a coltish teenage girl to become a much older man’s mistress. French accents can make anything seem romantic. An avid musical theater fan, I imagined I’d one day be a star, as elegant as Caron or Audrey Hepburn.

Dear reader, I did not become that girl. Not even close. Over the years, I’ve had to admit that I will never be a star of stage, screen or television. Nor a chanteuse, though I can carry a tune. But, just before high school, my mother introduces me to Bye Bye Birdie, a film in which the beautiful Ann-Margret stars as Kim McAfee. Kim is a high school senior who’s just been pinned by Hugo but is randomly chosen to plant “One Last Kiss” on Elvis-inspired rocker Conrad Birdie before he deploys with the Army. In that film, I finally see the role I was born for.

I know what you’re thinking — “She’s no Kim McAfee.” And you’re right. But her hyper-enthusiastic brunette of a best friend, Ursula Merkle? That’s more like it.

It just so happens that the summer before my freshman year of high school, we spy a casting call in our small-town paper for a local theater production of, you guessed it, Bye Bye Birdie, just a couple towns over. For days, I practice Ursula’s lines in my bedroom mirror and work on the vocals to “We Go Together” from Grease because the music has a similar vibe. Plus, I already know that song well. So well, in fact, that I’m feeling cocky and even sprinkle in a little movement. It’s no Jennifer Beals Flashdance moment, but it’ll do.

Audition day arrives and my mom and I are piled into a room with all the other hopeful stage actors. We’ll all be trying out in front of everyone else. A little nerve-racking, for sure, but if you can’t do that, what business do you have performing for a packed house?

While I wait for my name to be called, I watch and cheer politely for everyone else as anticipation builds, my heart racing and my hands clammy.

“Tricia,” the director, Mark, calls. A young woman (and, yes, she’s over 18) walks confidently to the stage, waving at the director with a glint in her dark-brown eyes. It’s clear that she’s worked with this director before — their exchange of glances seems just a little chummy to me. “And what role are you auditioning for?

“Ursula,” she says. Her chestnut tresses bounce with the cocky bob of her head. She already knows this part is hers. And, truly, she’s really good. My palms start sweating something fierce as uncertainty creeps in. I take a deep, calming breath.

My turn arrives. I introduce myself and am given the same lines that Tricia has already read. The scene is one where Ursula is fan-girling for all she’s worth to Conrad Birdie. I begin, reciting the lines I know so well, then drop to my knees, clutching my heart as I say, “Speak to us, oh beautiful one, tell us how you make that glorious sound, that even now an anticipation of it has reduced me to a snarling, raging, panting, jungle beast!”

In that brief moment, I am Ursula. I have just owned that part. Mark exchanges knowing looks with his colleagues. My mom is beaming in her seat, her hazel eyes gleaming.

Someone else notices, too — Tricia. She stalks over to the director’s table and leans in toward Mark, whispering. His head, covered in dark-brown curls, nods along. And before I can say, “We love you Conrad,” Tricia is back on stage, having been given a second chance and reading yet another Ursula scene.

I look at my mom and panic: “What do I do? Do I ask if I can go again, too?” No, I decide. I know that I’ve given my best. And, at 14, I’ve already dealt with my fair share of mean girls. My mom has taught me exactly how to handle them: Do not let them get under your skin. Well, more like, don’t let them see that they’ve gotten under your skin. And never stoop to their level.

A few days later, back at home, our hunter-green kitchen telephone rings and Mom picks up. She hands it to me while putting her hand over the receiver: “It’s Mark!”

Still holding onto hope, I stretch the cord as far as I can and lean on the hallway wall, out of my family’s earshot.

“Your audition was really something,” Mark says, “and we’d love to have you in the chorus. In fact, we want to give you several speaking lines.”

Holding back tears, I accept the small part. I show up at the first rehearsal, head held high, knowing that I made a fully-grown woman sweat it out and worry that she was going to lose her part to a child. Over the course of the next several weeks, I shimmy, shake and belt out tunes along with a handful of other chorus teens who become close friends. Tricia, with an air of her “you-know-what doesn’t stink,” keeps her distance from our lowly chorus crew.

Sure, she got to play Ursula, but I learned something that’s stuck with me: Sometimes, it’s not about who you know, but how well you know yourself.  OH

Cassie Bustamante is editor of O.Henry magazine.