THEY picked the wrong person to fat-shame.

Body-confident pop star Pink has lashed out at Twitter bullies who ridiculed her new curves.

Over the weekend, the 35-year-old hit the red carpet with husband Carey Hart in an elegant black dress with a plunging neckline.

But all some online haters saw was the singer’s apparent weight gain.

While the Get This Party Started singer admitted the dress “didn’t photograph as well as it did in my kitchen,” she said negative comments about her size were out of line.

“I can see that some of you are concerned about me from your comments about my weight,” she wrote in a lengthy tweet on Saturday.

“You’re referring to the pictures of me from last night’s cancer benefit that I attended to support my dear friend Dr. Maggie DiNome. She was given the Duke Award for her tireless efforts and stellar contributions to the eradication of cancer.

“But unfortunately, my weight seems much more important to some of you. While I admit that the dress didn’t photograph as well as it did in my kitchen, I will also admit that I felt very pretty. In fact, I feel beautiful.”

Pink continued: “So, my good and concerned peoples, please don’t worry about me.

“I’m not worried about me. And I’m not worried about you either:)…I am perfectly fine, perfectly happy, and my healthy, voluptuous and crazy strong body is having some much deserved time off. Thanks for your concern. Love, cheesecake.”

The Just Give Me a Reason hit maker also shared how her husband and daughter, Willow, feel about her frame.

“Willow said to me the other day whilst grabbing my belly — ‘mama-why r u so squishy?’ And I said..’b/cuz I’m happy baby’,” she tweeted about her daughter.

and my hubby says "it's just more to love baby" (and then I smack his hand off my booty cause we're in a supermarket) pic.twitter.com/Mnd6PIoKhK — P!nk (@Pink) April 13, 2015

Willow said to me the other day whilst grabbing my belly-"mama-why r u so squishy?"And I said.."b/cuz I'm happy baby" pic.twitter.com/69wuVHg6QM — P!nk (@Pink) April 13, 2015

The singer’s fans have come out in support of her bold stance, describing her as a role model and praising her body confidence.