Ariana Grande has hit back at a body-shamer who called her a "stick" and compared her to Ariel Winter.

Ariana Grande

Ariana Grande

The 'Focus' singer, 22, has been forced to stand up for herself after an internet troll claimed her slender frame wasn't "sexy" and pitted her against the 17-year-old actress.

Taking to Instagram, Ariana uploaded a screen shot of a Twitter comment, which read: "Got asked if I'd prefer @arielwinter1 or @ArianaGrande lol, it wud DEFINITELY be @arielwinter1. Curves are sexy sticks aren't (sic)."

Clearly infuriated and hurt by the statement, the brunette beauty posted a long-winded message to her fans telling them it's unacceptable to criticise someone's body shape.

She wrote: "Sigh, tweets, comments, statements like this are not okay. about anyone!!!

"We live in a day and age where people make it IMPOSSIBLE for women, men, anyone to embrace themselves exactly how they are. diversity is sexy! loving yourself is sexy! you know what is NOT sexy? misogyny, objectifying, labeling, comparing and body shaming!!!

"Talking about people's body's as if they're on display ASKING for your approval/opinion. THEY ARE NOT!!!! CELEBRATE YOURSELF. CELEBRATE OTHERS."

She added: "The things that make us different from one another make us BEAUTIFUL. Body BOUNDARIES. LOVE LOVE LOVE ONLY (sic)."

Ariel then posted Ariana's comment on her social networking sites and praised her for standing up to the nasty critics.

She said: "Thank you @arianagrande for posting this. I love the message you're putting out there. I especially believe in today's world we all need to stick together - I believe in EMPOWERING other women and not putting them down. I celebrate everyone for who they are because that is what makes them beautiful. You ARE beautiful."

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