It hasn't even been a week since he debut his praying hands and roses tat on his leg while on vacation in Mexico.
His new ink is a Native American head on his shoulder blade.
Justin posted pics of the new tat on Instagram with the caption, "My grandfather always took me to the stratford culliton every friday night this is for u Grampa ... My man @chenterios hooked it up."
Aww, he got it for his gramps!
This latest piece of body art is Justin's tenth tattoo. Do you think he'll get more?
What do you think of Justin's new ink? Let us know!