Finneas O'Connell and Billie Eilish Christopher Polk/Billboard via Getty Images Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment Billie Eilish and her brother and principal collaborator Finneas O'Connell won the award for song of the year for "Wildflower" at the 2026 Grammys on Sunday.