In September 2023, Tatum showed off his freshly minted piece, reading "L333," on his Instagram Stories. The design is inscribed on the back of his left calf, just below the knee bend. "Basically a prison tattoo," he simply captioned alongside the cryptic ink. He got this with his fitness trainer Trey Allen, who got a similarly coded "N853" inked across his left knee.
It's worth noting that in the photo shoot for V Magazine's 2022 cover story, Tatum's back showed two tiny tattoos, his right shoulder blade reading "33" and his left side "37." His recent leg tattoo appears to spell out the combination of the same digits. However, it is unknown if the ink on his back is permanent.