Travis Barker has spent most of his life behind a drum kit, but over the weekend, he witnessed something entirely new: his youngest son, Rocky Thirteen Barker, sitting behind a miniature kit of his own. The moment, quietly captured and shared on social media, gave fans a rare glimpse into Barker’s life offstage, and perhaps into the earliest steps of a family legacy in the making.

In a short video posted to Instagram, Rocky, just 20 months old, is seen wearing a pair of oversized blue headphones and holding his first drumsticks. He isn’t just banging randomly; his movements are measured, focused. At one point, he begins marching in a small circle around the kit. Behind the camera, Kourtney Kardashian Barker, his mother, can be heard with a mix of surprise and joy in her voice: “Oh yeah. Marching.”