And we are not the only ones who have started noticing Gwen's appearance changes. One Twitter user declared that the singer had gone "way too far" with the plastic surgery, and it's hard not to see where they're coming from.
But what do the experts have to say about Gwen's changing look?
Plastic surgeons gave their expert opinions on Gwen's potential plastic surgeries while speaking to Life & Style this past June.
Dr. Michelle Yagoda told the outlet, "It looks like Gwen has had cheek filler, a rhinoplasty to smooth out the bump that can be seen on the side view of her nose, Botox to drop her upper lip to reduce her gummy smile, lip injections (see the bumpiness of her top lip) and a chin implant."
Other experts speculated that she might have opted for cheek and chin fillers as well as some botox.
Dr. David Shafer explained, "Based on the picture where Gwen is displaying her 'new look,' it appears people are questioning the amount of filler she’s had."
Guessing that she most likely had cheek and chin fillers, Shafer added that both were "very common."
Plus, according to Shafer, much of what we notice in pictures is related to filters, good lighting, and makeup. Without seeing someone in person, it can be difficult to tell how much the camera plays a role in their changed appearance.
Although Gwen has not confirmed or denied plastic surgery rumors -- and it doesn't look like she'll start opening up about them anytime soon -- these experts seem to think the possibility of her undergoing cosmetic procedures likely. And we have to say we agree.