But after keeping the tattoo under wraps for a long time, artist Jonathan Valena, also known as JonBoy, took to Instagram on Tuesday to share a photo of Justin's new body art - the word "Grace" in cursive writing above his right eyebrow.
The image was shared with a caption reminiscing on the year Jonboy has had.
"Thank you. Thank you to my clients who have become some of my best friends". Page Six reported in an interview with Justin's tattoo studio owner that it's part of a "couples' tattoo" that Justin and Hailey got.
Check out the photo of the tattoo below...
"They each got a tattoo", McCurdy said at the time. I love you all!
Of course, this isn't the first tattoo by JonBoy that Justin Bieber has had, with the Canadian singer getting some ink of a small cross back in 2016.
'They each got a tattoo, ' the veteran artist told the publication, 'Justin's tattoo is on his face, and I haven't seen any photos of it - so he's doing a good job of laying low'. "It's really thin and delicate".
"I'm running out of spots to put little ones", she said, adding that "eventually when I have kids one day, I want to get my kids' names and then I want to have the spots for that". "And [it's] also not a traditional couples" tattoo.
One wrote: "Please tell me that's not Justin Bieber. I don't want to give away what it is until press gets a hold of it".