By now we know that coconut oil makes an amazingly moisture-rich hair mask, but according to the singer, olive oil has the same (if not superior) hydrating and shine-inducing effects. For best results, let the oil saturate your strands overnight—just make sure to wear something around your head as a barrier from your pillowcase.
Click here to find out Fergie’s entire beauty routine (and her secret eyebrow grooming tip)!