The former Disney star visited celebrity tattoo artist Bang Bang in New York last month to have the words 'Love Yourself First' tattooed on her right side in Arabic.
She revealed it for the first time last night.
Selena didn't tell fans what had motivated those particular words, only saying: "Art by @bangbangnyc --from my first to my last. It's always this fool."
Bang Bang told E! Online: "The tattoo is about 4 inches, and didn't take too long, probably about 30-45 minutes. The longest part is laying it out. We played with it a bit laying it out, until we found the perfect spot."
The starlet get her new ink covered up while hitting the red carpet in Ishcia, Italy on Wednesday night (16 July) for the Ischia Global Fest.
Selena, 21, looked gorgeous in a loose-fitting blue gown slashed to the naval. She embraced her inner Angelina Jolie with some serious leg flashing as well.
She was at the international premiere of her new movie Rudderless, which was directed by actor William H. Macy. It first premiered at the Sundance Film Festival this year.
Rudderless tells the story of a father mourning the loss of his son who finds a box of music secretly written by his son and decides to create a band.
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