Foo Fighters and iconic performances from years past from some of alternative's biggest bands, Billie Eilish was the perfect ending to this year's iHeartRadio ALTer EGO presented by Capital One with a brand new performance. Under blue and green lighting — a very Billie aesthetic — Eilish took over the stage with a spellbound set as she performed some of her biggest hits, alongside her brother FINNEAS. Kicking things off with her latest single "Therefore I Am," Billie then performed her 2019 piano-driven hit "everything i wanted," before ending the night with her dreamy song "my future." Billie Eilish ALTerEgo 2020 Before taking a look back on