Brooks Koepka is taking a walk on the blond side.

The 31-year-old golfer stunned fans on social media Wednesday by revealing he had dyed his hair bleach blond. In a video posted to his social media channels, Koepka set the clip to Eminem’s “The Real Slim Shady,” channelling the rapper’s past look.

“Blondes have more fun,” Koepka captioned the video.

Within moments of the video going live, the golfer’s 1.1 million followers weighed in on Koepka’s surprising new look.

“Machine Gun Koepka?” one fan commented while another responded, “Channeling your inner Pete Davidson.”

Some followers questioned if Koepka’s fiancée, Jena Sims, was behind the transformation.

“Ayyyye!! 🙌🏽🙌🏽 I for sure thought @jenamsims did this one tho 😜,” a follower quipped, to which Koepka replied with a trio of crying laughing emojis.

Sims, who announced her engagement to Koepka last spring, took to Instagram later in the day Wednesday to share her thoughts on the look.

“I love this so much lol,” Sims wrote on her Instagram Story. “He would be sexy with purple/green/orange/no hair tho….”

With the couple slated to tie the knot this summer, Koepka — who is currently competing in the Farmers Insurance Open — told Golf Channel that his lighter locks probably won’t make it to their wedding day.

“Hopefully it’s out by then. If it was still in there, I think Jena would kill me,” Kopeka said of his future bride, whom he started dating in 2017.

Koepka added that the dramatic change was a result of him and his barber, Philly Garcia, “just messing around.”

“My barber has been wanting to do it for a while, so I told him I’d do it,” said Koepka, who shot a 2-under in the first round of the Famers Insurance Open on Wednesday at Torrey Pines.