The 56-year-old took to TikTok on Wednesday to post a video of herself doing the "teenage dirtbag" trend, a phenomenon that has a person show what they look like today followed by several older photos of themselves as a teenager.
In her video, Twain started by casually wiping down her kitchen countertop until she stopped to look directly at the camera. Then, five old photos of the Canadian singer-songwriter as a teenager — a couple of portraits, one performing on stage and a few hanging out with friends — appeared on the screen.
"The hair!" Twain captioned her post with a heart eye emoji, noting the large hair she sported in the 1980s.
TikTok users were big fans of the "Man! I Feel Like A Woman!" and "You're Still The One" singer's video, with many noting the last time they saw the country-pop star perform in concert.
"It's giving icon," one fan wrote, while adding a flame emoji.
"Beautiful as always! Have an awesome day," another fan raved.
"Still one of the most beautiful women in the [world]," someone replied, while adding a globe and smiling face with hearts emoji.
"Absolute legend," commented someone else.
So far, the "teenage dirtbag" trend has been a massive hit among TikTok users and celebrities, where its hashtag has racked up more than 3 billion views on the platform. Stars like Joe Jonas, Steve Harvey, Nina Dobrev, Jimmy Fallon and Madonna hopped on the fad over the past couple of weeks, with their videos gaining hundreds of thousands of views and likes.
People were huge fans of Nina Dobrev's version, where the Canadian actress's video gained more than one million likes on TikTok.
"Nina, your TikToks are keeping me alive," one person quipped.
"Young Nina is everything," a fan added.
Several fans also showed their love for Madonna on her video, with many mentioning her legacy as a pop icon.
"You hate to be there," Madonna captioned her post, which she shared on TikTok earlier this week.
"The queen of all queens," one person said.
"Legend! She will literally tire out any man who thinks he can keep up with Madonna!" someone else added.
"We love you!! You stood up for [the] LGBTQ from the beginning!! You are an icon!!! Much love from Vegas," shared a fan.