Ombré? Balayage? Bronde? There are so many hair color terms floating around, and it all sounds French to us! No one expects you to be a professional when you call to make a bleach appointment. But knowing a few of the key buzzwords can be the defining difference between getting a Cara Delevingne ombré and a Pamela Anderson platinum (yikes!). We spoke with L'Oréal Paris celebrity colorist Kari Hill to break down all the techniques. Plus, Kari turned us on to the hot new hair-painting trend coming out of LA salons: spongelights. Once you've studied up on all your color terms, make sure to check out our Haircut 101, too.