JoJo Siwa has said farewell to her famous blonde hair and shockingly revealed she switched her signature color to brunette.

The 17-year-old internet sensation dyed her locks brown and showed off the results – which have caused a fan frenzy – on Friday night.

JoJo posted a surprise clip to her 9.5 million Instagram followers and captioned it: “wait for it…..”

In the video, the Dance Moms alum stepped into frame rocking her trademark blonde high ponytail with a large pink bow.

The YouTuber makes a series of facial expressions as she uses audio from a popular online meme.

“Girl don’t do it, it’s not worth it,” a woman says which is responded with “I’m not going to do it girl. I’m just thinking about it I’m not going to do it.”

However, in the next frame, the teenager mouths “I did it” in a continuation from the background track.

JoJo walks to the camera with long, curly brown hair flowing past her shoulders.

The hair makeover is a drastic change from the golden hair she consistently rocked in a side pony.

She flaunted her new hairdo in another clip as she danced to Miley Cyrus’ hit Can’t Be Tamed.

Like the first post, the clip starts out with a blonde JoJo but as the chorus approaches, the reality star does a spin and transforms into a brunette.

She also danced with a dark-haired friend as they both joked they were “twins” now with similar hair color.

Fans of the Kid in a Candy Store singer went crazy with the debut of her new hair.

One person tweeted: “This IS NOT A DRILL!! I REPEAT, NOT A DRILL!!

“Jojo Siwa dyed her hair BROWN and is wearing a STRAIGHT ON PONLYTAIL with NO BOW!!”

“JoJo siwa's blonde side ponytail was the only consistency i had in my life and now i have nothing,” another said.

Someone exclaimed: “JOJO SIWA DYED HER BLEACHED BLONDE HAIR BRUNETTE!!!!

“THIS IS NOT A DRILL!!!! SHE! IS! NOW! HER! NATURAL! HAIR! COLOR!”

Fans were less stunned in March, after many accurately predicted the young performer was a contestant on The Masked Singer.

After she the least amount of votes in the Group C round, JoJo was unmasked as the T-Rex.

"Knew it! Been saying it since her first performance! I KNEW THAT WAS MY GIRL @itsjojosiwa," one viewer tweeted.

Another proud fan wrote "Astronaut is Hunter Hayes and the T Rex is Jojo Siwa" and then said in a follow up tweet: "It actually was Jojo I'm laughing.”

"My first time guessing right! I guessed @itsjojosiwa right from the first time she sang. #TheMaskedSinger," a watcher said with a "Victory" gif.

Three out of the four members of the judging panel also accurately guessed the bubbly blonde.

Nicole Scherzinger, 41, Robin Thicke, 43, and Jenny MccCarthy, 47, all bet their final choice on the teenage singer and actress.

JoJo revealed she sacrificed a lot to go on the show: “I actually paused my tour for this. I was like PAUSE I want to do this!”

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