Adam Levine shows off his new blonde hairstyle with fiancee Behati Prinsloo. Credit: Courtesy of Adam Levine

Blonds have all the fun! At least, that's a theory Adam Levine is testing out. The Maroon 5 frontman, 35, posed for a mirror selfie with fiancee Behati Prinsloo, showing off his new platinum blonde locks. 

"Apocalypse prep course complete," he captioned the sexy shot. 

It's not clear if Levine changed his look for an upcoming role, but if the hair color is permanent, he'll be showing it off on The Voice's live shows on Monday night. 

In addition to his role as the reality show coach and singing for the pop rock group, Levine has also delved into acting recently. After appearing in three episodes of American Horror Story: Asylum in 2012 and was featured in the film Begin Again, which just premiered at the Tribeca Film Festival. 

As for his nuptials, the Los Angeles native couldn't be more thrilled to be wedding the Victoria's Secret model. 

“She makes me the best person I can be," Levine gushed at a Tribeca event. "She's the best in the world."