Megan Fox has debuted a choppy hair transformation ... While the other snap she shared of her new look was a selfie she took in natural light where she wore a fuzzy black cardigan.

Dimitris Giannetos/Instagram; Megan Fox/Instagram Megan Fox is feeling ... Last summer, though, Fox went for a more natural look, wearing her hair past her shoulders in a copper shade.

Megan Fox is showing off her fresh ... The look isn't fully au natural, as Fox is sporting her new blue hair color in the shot. "Repairing my hair (and 26 inches of extensions) post Coachella ...