Some people spend their teenage years writing angsty poetry in a locked journal; Billie Eilish put her longing to music. At 14, she made waves online with her haunting breakthrough single “ocean eyes”, which is packed with dreamy romanticism that appeals to her peers and elders alike. Her defiant alto is at once relatable and otherwordly on the moody “when the party’s over” and the thumping “you should see me in a crown”, blending the everyday and the dreamy in a way that electrifies audiences. Eilish is a decidedly 21st-century pop star whose aesthetic has already blazed a trail for the 2020s.