Talk about a transformation! Lena Dunham debuted short blond locks  on Instagram on Friday. "Change is good," she wrote in the caption. Still, there was no way to know for sure if this change is permanent. After all, the world has been fooled by other celebrities recently (don't forget Kim Kardashian's wig ), and we've seen Lena with a similar look before (remember when she danced to Sia's "Chandelier"  on Late Night With Seth Meyers?). But by sharing additional Instagrams over the weekend, Lena has provided even more evidence that suggests this is the real deal. Keep reading to see the proof.
Source: Instagram user lenadunham ; front page image source: Getty/Karwai Tang 
Source: Instagram user lenadunham 
The video shows Lena dumping a pail of ice water all over her head after challenging her Girls costar Allison Williams to join all the stars who have drenched themselves . Would you intentionally get water on a wig?
Exhibit B: This Picture With Pals
If you look closely, you just might be able to see a hint of Lena's dark roots beneath her freshly dyed blond hair. Is this case closed? Tell us what you think about Lena's new look!
Source: Instagram user lenadunham