Celebs, they're just like us. Hair is hair and even if you are the world's biggest pop star you still have to play by the rules. When Billie Eilish (@billieeilish) debuted her brand new look on Instagram, it quickly broke records and is now the third most-liked photo on Instagram EVER. Hairstylists we KNOW you were curious about the process and so were we. Scroll through for what we know.

Click here for 50% OFF the BTC University Member Subscription!
As we all have known and grown to love, Billie's hair was…
Keep reading for free
Create a free account or sign in to continue
Use the same email and password across behindthechair.com, BTC-U, oneshothairawards.com, and Who Does Your Hair — one set of credentials, every site.










