In celebration of Supreme Court Justice Ruth Bader Ginsburg's birthday, plank poses, celebratory tweets and more

Ruth Bader Ginsburg turned 86 Friday, inspiring "RBG" enthusiasts to Tweet birthday wishes, break out in the "Happy Birthday" song and hold "plank pose" in front of the Supreme Court building in Washington D.C.

The Supreme Court Justice’s workout routine has become a focal point among her fans.

Ginsburg’s personal trainer, Bryant Johnson, released a book in 2017 about her exercise regimen, and in a 2018 segment, Stephen Colbert attempted to keep up with the then-85-year-old’s routine.

Friday evening, a group set up yoga mats in front of the Supreme Court steps to "plank for RBG." Some attendees wore shirts designed in the style of a shirt Ginsburg has been known to work out in, that says "Super Diva."

The event was organized by an "activist apparel brand" called The Outrage. CEO and Founder Rebecca Lee Funk told ABC News that the event was inspired in part by the success of the brand’s "Plank Like RBG" shirts, which several attendees wore.

Funk said The Outrage "wants to remind people that there is a lot of joy in resistance, and there is a lot of joy in celebrating modern heroes like Justice Ginsburg."

At Friday's event, Michelle Stravitz, co-founder of the nonprofit 2Unstoppable, told ABC, "because of women like her, I always assumed I could do whatever I wanted."

2Unstoppable supports fitness for women who have had cancer.

"When I learned about how she incorporated fitness into her life... that was an inspiration for me," Stravitz said.

After hearing from several speakers, attendees planked in front of the Supreme Court steps, and sang "Happy Birthday."

Back in Ginsburg’s birthplace of Brooklyn, N.Y., dozens of revelers gathered Friday to sing "Happy Birthday" and sign a birthday card for the Associate Supreme Court Justice.

The event was part of a push by Brooklyn’s borough president, Eric Adams, to name the city’s municipal hall after Ginsburg. Adams has called on Mayor Bill De Blasio to allow for the name change.

High-schooler and Brooklyn-native Violet Kopp attended the event and said the 86-year-old inspires her every day.

"When you are looking for a role model you are looking to see yourself in someone else and see what you can be and to have that direct connection to her is really inspiring," she said. "It is moving to know that maybe someday if we work hard like she did and keep breaking down barriers we can be that too."

Ginsburg was born March 15th, 1933 in Brooklyn. Among the many things that did not exist yet then: The Golden Gate Bridge, chocolate chip cookies & monopoly.