Coca-Cola. Yes really.
While we're unsure what possessed her to try this DIY beauty trick out in the first place, it certainly seems to be doing the trick.
The 23-year-old, who recently split with actor Bradley Cooper, added: "I don't like my hair when it's washed — it's fine and limp — but Coca-Cola makes it tousled, like I've gone through the Amazon or something."
*Grabs a can of Coke and heads for the ladies*