The 36-year-old singer took to Instagram to show off the tattoo, which took six months to finish, reported Aceshowbiz.
In the photo, Levine's back faced the camera and he went shirtless to put his tattoo of a winged mermaid on full display.
"6 months in the making. Thanks @bryanrandolph for absolutely blowing my mind with this one! Woooo hooooo!!!!" Levine captioned the photo.
The tattoo was done by Bryan Randolph from Spider Murphy's Tattoo in San Rafael, California.
The mermaid, known as Siren from Greek mythology, cradles a skull as she rests on the seashore. She is surrounded by a group of birds with a ship far away in the middle of the ocean.