One week from today, Friday the 13th fans everywhere will finally return to camp with Crystal Lake, the prequel series centered on Jason Voorhees’ mother, Pamela (played by Linda Cardellini). While promoting the show on The Tonight Show with Jimmy Fallon, the two discussed a fun franchise nugget that some of you may not know.

During their discussion, Cardellini and Fallon got into the origins of that iconic ki-ki-ki-ma-ma-ma sound that plays throughout the franchise.

If you don’t already know the story, I’ll let Linda give you the details.