Eilish siblings

Billie Eilish and FINNEAS at the GRAMMY Museum

On Sept. 17, Billie Eilish and brother Finneas hit up the GRAMMY Museum for Spotlight: Billie Eilish with special guest FINNEAS. The Eilish siblings sat down for an interview with the night's moderator Scott Goldman.

Spotlight: Billie Eilish with Special Guest FINNEAS at the GRAMMY Museum on Sept. 17 in Los Angeles, California. (Photo by Rebecca Sapp/WireImage for The Recording Academy )

Photo Credit: Courtesy of the Recording Academy™/photo by Rebecca Sapp, Getty Images © 2019.