This story was originally published on April 2, 2017.
In fact, over the last year (since his 18th birthday), the celeb offspring has accumulated over 20 — and though many are small, none are insignificant. His first? A nod to his famous father's own controversial design from legendary tattoo artist Mark Mahoney.
Ahead, we've compiled a road map to most tattoos he's gotten — just in case you needed more proof the young star is morphing into his dad.