Not long after Aidan was diagnosed with ALD in 2011 street artist Shepard Fairey paid a visit to Indian Larry, the custom motorcycle shop his parents operate in Brooklyn, New York. (Fairey was at the shop to paint the latest of his iconic “Obey” murals on an outside wall.) No one remembers, exactly, how it started. But while Fairey was working on the mural - while Brooklynites with iPhones were in observance - the latest twist on Fairey’s street art meme emerged: Aidan Has A Posse.

 Shepard Fairey with Aidan and Bobby Seeger at Indian Larry Motorcyle in Brooklyn, New York

Shepard Fairey with Aidan and Bobby Seeger at Indian Larry Motorcyle in Brooklyn, New York

Motorcycle groups, school kids, moms, nurses, teachers, musicians, the art world and celebrities showed support for Aidan by sharing photos of themselves with “Aidan Has A Posse” signs on social media and using the hashtag #aidanhasaposse. The photos and posts were creative and impassioned.

A fundraising website was published to help pay for Aidan’s skyrocketing medical bills (totaling more than $4 million): www.aidanhasaposse.org. Billboards went up promoting the website in Brooklyn and Manhattan. Tee-shirts, stickers, caps and wristbands featuring the meme were sold at fundraising events and Indian Larry’s merch shop.

Aidan’s Posse is alive and well - and growing. It includes Shepard Fairey, Susan Sarandon, Ewan McGregor, Ken Jeong, Ed Asner, Tyson Beckford,  Shane McMahon, Stephanie McMahon, Mark Feuerstein, Zoe Kravitz and The Blue Man Group.

What about you?