These chords are used on everything from The Beatles to Billie Eilish, and every genre of music that adopts any form of basic harmony.

For a detailed breakdown of Eilish’s exact pieces, the Instagram account @eilishoutfits tracks each tour look and how much it ...

Billie Eilish goes from two Hot 100 hits to four in the span of only a few days, as "Guess" with Charli XCX and "The Greatest" join "Birds of a Feather" and "Wildflower." ...