Billie Eilish and her brother Finneas O'Connell are both Grammy award-winning musicians, but at home, they're just brother and sister. The duo participated in Verizon's Pay It Forward concert series on April 22 to promote Earth Day and support small businesses — with a guest appearance from their mom, Maggie Baird. They played through a few of their most popular tracks, with pauses in between to chat, and yes, even tease each other as siblings do.
Around the 36:10 mark, Eilish spots O'Connell's Taylor Swift guitar pick and bursts into laughter. "Look what Finneas has!" she exclaimed, before he explained the story behind his Lover-themed picks. Apparently, they were a gift from Swift's "very nice" dad, who he met backstage. Watch the full concert above to catch every moment between the duo. From the One World: Together at Home concert to the Late Late Show's #HomeFest, these two are certainly keeping busy even while social distancing.