We all know Bindi Irwin as the young, bright teen who won everyone's hearts — and the Mirrorball trophy — on Dancing With The Stars' 21st season.
But now, with her 18th birthday just around the corner, Steve Irwin's daughter is showing a more grown up side of her that we've never seen before!
On Wednesday, the Australia native took to Instagram to share a selfie… and she looks NOTHING like herself!
The 17-year-old posted a pic showing off a darker hair color and an ever-so-slightly revealing tank top with the word "Thelma" on it.
Ch-ch-check out the new photo (below)!