Kim Kardashian had fans in a tizzy yet again as she hid her lustrous locks under a chunky knit beanie in Paris. The reality star, who was practically incognito as she stepped out on Thursday (Mar. 5), reunited with husband Kanye West in the City of Light for Paris Fashion Week after a week apart.

But what were those few wisps of fair hair just visible beneath Kim’s hat? In spite of her efforts to conceal her tresses, fans are speculating that she's returned to blond.

CLICK ON PHOTOS TO ENLARGEKim Kardashian let a few wisps of blonde hair slip out from under her beanie

The lovebirds looked their usual stylish selves as they coordinated in black outfits. Kim, 34, flaunted her petite figure in tight leather trousers and a black top, keeping warm with a furry stole.

Her rapper husband, who has mingled with the likes of Karl Lagerfeld during Fashion Week, also added a layer to his dark ensemble with a fur-collared bomber jacket.

Kim announced that she had touched down in the French capital – a favourite destination for her and Kanye – on Thursday morning. The model shared a photo of the iconic Eiffel Tower on Instagram, captioning it: "And so it begins…Paris Fashion Week."

And so it begins....Paris Fashion Week

A photo posted by Kim Kardashian West (@kimkardashian) on Mar 5, 2015 at 12:33am PST

Kim Kardashian announced to her fans on Instagram that she had touched down in the City of Light

The couple will most likely be making an appearance at the Balmain show later on in the day, as they are good friends with the brand’s creative director Olivier Rousteing.

Kim and Kanye were also crowned as the newest faces of Balmain’s SS/15 menswear collection last December, and announced their collaboration with an edgy photoshoot campaign.

Kanye West and Kim Kardashian are most likely attending the Balmain show later on Thursday

It wouldn’t come as a surprise if Kim has indeed gone blond, and is planning to unveil her new hairstyle on the front row at the fashion show.

Her change in hair colour would come as a welcome surprise to Kanye, who has previously admitted that he prefers his wife with caramel or golden honey locks.

Kim’s decision would also follow in the footsteps of her younger sister Khloé Kardashian, who revealed that she was “in love” with her new blond hair. The 30-year-old ditched her usual brunette locks in favour of a golden blond hue, and shared a snap of her new ’do on Instagram.