Jennifer Lopez ditched her short haircut to film the upcoming video for her duet with Spanish singer Alvaro Soler, opting for extensions styled as if it were a bright, happy morning in 1999. Yes, friends, this is more proof that '90s style is back. Lopez herself was more of a sleek-hair kinda girl in the '90s and the '00s, so this isn't a return of her style so much as a throwback to the period's rough volume (not to be mistaken with the crunchy gelled-up big hair of the '80s). Think Christina Aguilera, Britney Spears circa "I'm a Slave 4 U," and Shakira. The trick to getting this kind of texture is to go for a texturizing product like L'Oreal Advanced Hairstyle TXT It Tousle Waves Spray for Matte Texture ($4.49, drugstore.com) or even salt spray (if your hair isn't curly—that''ll just make spirals shrink way up) and using a scrunching technique while you brow dry. How to: Starting with your palms open, gently draw the ends of a three-inch-wide section of your damp hair up towards your scalp, closing your fist at the top to use the heat of your hand to lock in the shape while you blow-dry.