Getty

Laura Jane Grace Proclaims 'Gender Is Over' -- On This Awesome T-Shirt

Plus -- find out how to grab your own.

Just a few weeks after Caitlyn Jenner revealed her new name -- and new look -- to the world, punk legend Laura Jane Grace took the stage at Brooklyn's Northside Festival in a mesh jersey reading, "Gender Is Over (If You Want It)." And we've got the scoop on where you can grab your own.

Before taking the stage to perform a career-spanning set -- from "I Was A Teenage Anarchist" to "True Trans Soul Rebel" -- Grace was handed the jersey in question, a simple garment with a not-so-simple message.

The shirt -- which goes for $25 -- was designed by Marie McGwier and Nina Mashurova, and all the proceeds from its sale go to Trans Lifeline. The pair presented Laura with the shirt pre-show.

"Words can't really describe the immense joy I feel watching the strikingly beautiful @laurajanegrace performing in the #GenderIsOver jersey @neonsigh and I gave her," Marie wrote on Instagram.

Based on John Lennon and Yoko Ono's "War Is Over (if you want it)" project, Nina and Marie created the shirts to challenge gender norms in a way that, quite literally, allows one to wear their hearts on their sleeve.

"To me it means that individuals will be relieved of the societal baggage attached to us the minute we enter the world," Marie told The Media of the slogan. "On a micro level it means I can choose to navigate my life free of societal expectations whether it be about my body, the way I speak or opportunities I seek. On a macro level it means abolishing the severe inequalities that stem from binary gendered differences, while simultaneously taking a Thor-sized hammer to the entire system."

"I was always pretty genderqueer so I used to worry a lot about not being enough of a girl or else too much of a girl, and making lots of choices with that in mind," Nina added. "So in a lot of ways, 'gender is over' is a call for eliminating those types of borders/restrictions."

So what's up if the "if you want it" clause? "The 'if you want it' is a really important part!" Nina said. "If gender is an important part of your identity, that's totally valid. I get upset about gender when it's coercive, but coercing people to opt out would be just as bad."

Laura Jane Grace definitely made the perfect inaugural model for the shirt, having come out as trans a few years back and, through her music and her AOL series, dedicated herself to educating the uninformed and supporting fellow LGBTQA individuals.

The next model on the duo's list? That would be Miley Cyrus, who recently told Paper Magazine that she is fluid when it comes to gender and sexuality and, Monday (June 15), launched a portrait series called #InstaPride on Instagram to celebrate trans people.