Nickelodeon star Jennette McCurdy frequently posts fashion selfies detailing her outfits. But lately, the starlet's photos are attracting attention because she looks seriously skinny.

In one new snap, the singer and actress, 21, is wearing a black leather peplum top, skinny jeans and pointy heels, all of which highlighted her super skinny frame.

It certainly caused concern among her fans and followers, who commented that "u have lost weight but still gorgeous" and "omg, the weight loss," while another said that perhaps the peplum top created the illusion of skinny.

There were a few comments about hating her loafers, too, since haters gonna hate.

But in all seriousness, McCurdy looks really skinny.

What do you think? Has the former 'iCarly' star lost too much weight, or is it an Instagram illusion?

Below is the photo that had her followers up in arms, along with other recent images to give you an idea of her changing shape.

And a leggy shot from a few days ago:

This snap inspired fans to tell her she needed to eat more.

This pic is from earlier this summer, where she doesn't look quite so thin. Her curvy shape is pretty flawless in this dress and in this lighting.

Jennette McCurdy
Jonathan Leibson, Getty Images

Here she is in late 2012, in a ruched dress.

Jennette McCurdy
Bryan Steffy, Getty Images

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