However, not everyone was convinced the ink was an ode to Hailey, who shares son Jack Blues Bieber, 16 months, with Justin. Others suspected that the design was a tribute to the "Baby" singer's faith.
As one user put it on X, "I thought it was Jesus."
And while Justin may not have put Hailey on his back, he did have the Rhode Skincare founder by his side for the big night in music hosted by Trevor Noah. In fact, the couple opted to rock coordinating looks on the red carpet for the event.
And Hailey had a blast celebrating her husband inside the ceremony as well, even getting a good laugh out of Trevor's light-hearted joke about Justin in his opening monologue.
"Justin Bieber is back in the house—look at this!" the comedian said during his speech. "This man has done so many amazing things. His album Swag nominated, four Grammy nominations. And I think, better than any Grammy, he's come back as a new dad. Congratulations to both of you!"
"My personal favorite thing Justin Bieber has done over the past year is," Trevor continued, "he told Apple to move the dictation button on the keyboard. Hero, Justin. Now I just need you to tell them to make a new feature where, when you search on your phone, it finds things. Please, Justin, we need you."
Want to know who else had a great night at the 2026 Grammys? Read on for all the stars who went home winners...
Watch the Grammys 2026 Sunday, Feb. 1 at 8 p.m. ET/5 p.m. PT on CBS and streaming on Paramount+.