The band's official web store has just put out a late St. Patrick's day treat. If you were at the March 17 holiday show in Massachusetts or just like new Green Day merch, you're in luck (...pun intended).

This limited-edition event shirt, featuring a Revolution Radio cat logo on a festive green background, was produced to be sold exclusively at that show. Unfortunately, Winter Storm Stella hammered the Northeast and prevented the shirts from making it there in time.

This shirt was meant to be sold on March 17th, 2017 at the Worcester Show, however Mother Nature had other plans. https://t.co/rlbPgd3VFa pic.twitter.com/Fo6sOTUgzi

— Green Day (@GreenDay) April 4, 2017

They're listed in the store as a one-run-only shirt, so get yours while you can.

Even if you weren't at the Worchester show...a Green Day shirt from a Green Day show that was on Green Day? C'mon, it's cool!