Carrie Underwood “should embrace her natural beauty” and stop getting dental work, “Botox and fillers.”

Carrie Underwood is in hell because of her plastic surgery, but what worries the songbird more are her disastrously protruding teeth, which also show the marks of compulsive dental work, a source exclusively reports Life & Style.

“She's obviously been working on balancing things out a bit, but they haven't turned out so well,” the source says.

“Her teeth stick out and look bigger and unnaturally bright, the veneers are too big and look so artificial that fans cringe.”

The 41-year-old “Before He Cheats” singer sparked feverish debate over the new look, which she debuted in an Instagram post from her outdoor trip to Montana with her husband Mike Fisher.

Holding a fish for the camera, Carrie wore a gray hoodie and rubber wading boots, complemented by full face makeup.

Fans immediately jumped to the comments section of her post to discuss the changes to her appearance, with one pointing out: “That's a lot of makeup for fly fishing…”

Another was direct about any cosmetic surgery the singer may have had, saying: “Probably an eyebrow lift or upper blepharoplasty.” She got that Jennifer Lawrence & Emma Stone Job done.”

One social media user said: “I love Carrie but she needs to stop with all the facial and dental enhancements. “She was so beautiful before and didn't need to join the world of 'unnatural beauty'.”

While some were fixated on the singer's new look, many paid close attention to the dental work she may have had, particularly commenting on how strange her teeth looked in the vacation photos.

“She actually looks different,” another fan wrote. “Still absolutely beautiful! Did she have her teeth done?

“Okay, I just see her huge white teeth, wtf?” wrote one surprised user.

The teeth remained a hot topic for commentators. One said: “I think she's great but honestly I can't recognize her.” She is and always has been so naturally beautiful. So many surgeries here and maybe new teeth?”

Carrie's new features may have caused some surprise, but the source says that her obsession with her appearance leaves the singer constantly thinking about what she could fix and what could look better, especially after her tragic accident in 2017.

The singer suffered a “bad fall” in which she broke her wrist and injured her face so badly that she required extensive reconstructive surgery on her mouth area and lips, which also required a painful 50 stitches.

“Carrie should learn to leave herself alone, but she's obsessed with her looks,” says the insider. “Everyone knows she's addicted to Botox and fillers, but she also runs to the dentist for whitening and little adjustments here and there.”

The source agrees with many of the commenters, adding, “It's just kind of sad because she was such a pretty girl and still is, but she's starting to look weirder and weirder.”

“The feeling is that she should just embrace her natural beauty. She’s so talented and successful that she doesn’t need all the rest.”