AceShowbiz - Ariana Grande has savaged a fan who leaked photos of her unreleased new album, Sweetener, urging him or her to get a manicure.

The singer won't release the new album until Friday, August 17, but somehow an eager fan has picked up a physical copy of the CD - and he or she couldn't wait to share it, posting shots of the back cover and insert online on Monday.

Ariana wasn't best pleased with the leak and took aim at the sneaky fan, poking fun at his or her bitten-down nails.

"I mean if somebody's gonna leak what my hard copies looks like please handle this first... please," she wrote beneath a close-up of the fan's thumb she posted on Instagram. "this music is... too good for this."

"i worked too damn hard for this nail to be featured on my hard copy debut..." the No Tears Left to Cry singer added.