Music's biggest night, the Grammys, is well underway, and already Billie Eilish has ... into loose jeans and a yellow jersey, and she further highlighted her new hair cut. Tonight, Billie is ...

a hidden hair-tie technique for a sleeker ponytail, a deodorant layering hack for all-day freshness, and most recently, a Billie Eilish-approved lip-stain trick that the star swears by for a ...