If you adored Kim Kardashian’s pink tresses or Cardi B’s emerald finger waves, you can thank Tish and Snooky Bellomo. Hair color icons for four decades, the sisters have been slowly turning the world’s locks technicolor since founding their boutique, Manic Panic, in 1977.

The now-global brand attracted celebrities like Cyndi Lauper and Cher from its inception—but before Manic Panic would become the pioneering brand in punky dye, the Bellomo sisters simply saw the store as a side gig to a burgeoning musical career.

In October, Jezebel sat down with Tish and Snooky at Manic Panic’s headquarters. Watch the video above to hear more about performing with Blondie, their favorite hair colors of the moment, and why they don’t believe in aging gracefully.