The Fall Out Boy rocker bleached his locks platinum blonde, trading in his signature brown hair for a much lighter hue.
He shared a snapshot of his new look on Instagram, writing, "Prepared for new art on the horizon."
While we aren't sure about the meaning behind his cryptic message, the musician is no stranger to showing off his artistic side.
Wentz recently shared a picture of his model girlfriend Meagan Camper, who is currently pregnant with the couple's first child together. In the pic, which appears to have been taken from a mirror above their bed, Megan is seen lying completely naked!
Wentz, who also shares a 5-year-old son with ex-wife Ashlee Simpson, revealed Megan's pregnancy back in February with a sweet Instagram photo of the pair. Check out her cute baby bump below!