Jennifer Lopez debuts major new appearance change and it’s got fans saying the same thing

Jennifer Lopez has just debuted a pretty major new appearance change, and it's left fans all saying the exact same thing.

Now, as we know, celebrities and public figures alike seem to love shaking things up in the looks department from time to time - from Kate Middleton's new blonde hair all the way through to Pamela Anderson's fresh-faced visage.

And it's clear that the 56-year-old 'Jenny from the Block' singer-turned-actress is no exception after taking to Instagram over the weekend to share with her 247 million followers a series of selfies looking almost unrecognisable.

Lopez, who usually rocks her signature middle-part, perfectly highlighted light brunette long locks, could be seen with her hair in a platinum blonde pin-up hairdo, thinned out brows, and a striking red lip.

And in another snap, the Hustlers star could be seen sitting in a bathtub while looking over sketches of some dresses.

Fans were stunned after seeing J Lo's new look (Instagram/@jlo)

In addition to many complimenting her look, it seemed that such an aesthetic reminded many fans of another female A-lister - none other than Miss Gwen Stefani.

Stefani, who pretty much ruled early 2000s fashion, has become synonymous for her pin-up style and bold make-up looks, often complete with red lipstick and platinum blonde hair.

While she was into a whole mix of streetwise haute couture, modern-retro, eclectic, and punk-meets-glam ensembles, the 'Don't Speak' pop princess look can best be described as the seamless blend of old Hollywood glamour meeting a more modern, edgy aesthetic.

Regardless, it's clear fans couldn't help but compare Lopez to Stefani after seeing the snaps, as one Instagram user wrote: "What in the Gwen Stefani is this?"

Lopez could be seen rocking platinum locks in her latest social media post (Instagram/@jlo)

"I thought this was Gwen Stefani for a second lol!" quipped a second, while a third chimed in: "I thought that was Gwen at first!"

A fourth echoed: "Thought this was Gwen Stefani at first glance!"

"She looks like Gwen Stefani," declared another.

And it even stumped singer Natasha Bedingfield, who wrote in the comments: "Omg you look like @gwenstefani. Love you sis."

But why the reason for Lopez's major appearance change?

Fans reckoned Lopez was the spitting image of Gwen Stefani in the new snaps (Steve Granitz / Contributor / Getty Images)

Well, it seems she was offering fans a sneak peek of her old Hollywood glam for the role of Aurora in the upcoming musical thriller Kiss of the Spider Woman.

"Stepping into the role of Aurora felt like dancing through the golden age of cinema … with all the glitz, glamour, and a whole lot of dancing. Stepping back into time has never been so much fun," Lopez captioned the snap.

The film in question sees Lopez starring alongside Diego Luna, which is set in the time period of 1983.

The plot follows a political prisoner named Valentín, who shares a cell with a man named Molina, as they soon form an unlikely bond as Molina recounts a Hollywood musical plot.

Kiss of the Spider Woman is set to hit cinemas next month (10 October).