Billie Eilish reveals truth behind Finneas feud rumours Pop star Billie Eilish has spoken out to dismiss rumours of a feud with her brother and longtime collaborator Finneas - insisting they have never had a "falling-out" and their squabbles are just "sibl 29 April 2026 Billie Eilish revealed the truth behind rumours of a feud with her brother Finneas.