Choral Choir,Choral,SSAA Chorus - Level 2 - Digital Download SKU: A0.1428360 By Billie Eilish. By Billie Eilish O'Connell and Finneas O'Connell. Arranged by Caitlin P. Flemm. 21st Century,A Cappella,Contemporary,Film/TV,Pop. 6 pages. Caitlin Flemm #1009146. Published by Caitlin Flemm (A0.1428360). A quick learn for your treble a capella group! Written for SSA voices with a treble solo line.