After years of dabbling with red and blond hair tones, the pop diva is back in big, black, curly hair.
Jackson shared a gorgeous photo of herself modeling the new look. In the pic, the 53-year-old's newly dark wavy hair is parted to the side and cascading down past her shoulders.
"Surprise," she captioned the shot, adding a black heart emoji.
Fans immediately flipped for Jackson's throwback look.
"Yesssssssssss this is the hair we want!!!" gushed one.
"Wow!!!! Beautiful! You look good in black..... bring back Rhythm Nation!" wrote another.
Jackson's new do is just the latest cutting-edge hair choice the singer has made over the years.
See Janet's past hairstyles:
In a decade full of fabulously big hair, Jackson teased up her already voluminous curls for 1986's "Control" video and promo tour.
Four years later, she kicked off the 1990s by chopping off her huge mane and in favor of a curly chin-length bob.
She brought thick box braids to the mainstream when she co-starred with Tupac Shakur in John Singleton's 1993 film "Poetic Justice."
She wore a glamorous white suit and her braids pulled back when she presented her brother Michael Jackson with the Grammy Legend Award at the 1993 Grammy Awards.
Jackson rocked a punky layered cut and dramatic eye makeup for the surreal "Scream" video in 1995.
She showed up to the 1995 Golden Globes with sunny blond highlights in her long hair.
At the 1995 Essence Awards, her hair was cut in a curled, retro 1950s style inspired by legendary black actress Dorothy Dandridge.
She dyed her tight curls coppery red in 1997 and would continue revisiting red hues over the next two decades.
Jackson wore a midriff-baring blouse and cinnamon highlights in her long, layered hair at the 2002 BET Awards.
She was all about a blunt shoulder-length bob — with super straight bangs — at the 2006 Billboard Music Awards.
She was the picture of elegance with her hair pulled back in a sleek high ponytail at the 2008 Met Gala.
She chopped it all off in a cute short do that she parted to the side for a TODAY appearance in 2011.
The singer paired a camouflage shirt with bouncy red curls at the afterparty for the debut of her "Metamorphosis" residency in Las Vegas in May.
No matter how Janet wears her hair, she always looks fabulous!