She wore a tailored black jacket atop an untucked white button-up shirt, black slacks and matching dress shoes.

Aesthetics-wise, it doesn't get more different than Ariana Grande and Billie Eilish. The latter is an rigid tomboy (save for ...

Grammy Awards, Billie Eilish wore a head-to-toe Prada look including a little sailor hat and micro sunglasses. Click to see ...

Kevin Mazur/Getty Billie Eilish and the ... oversize V-neck jacket with a white button-down shirt peeking out, which she teamed with wide-leg black trousers. Eilish also added small black Chrome ...