Bille Joe Armstrong said it was an honor to "share the stage" with Billie Eilish at the FireAid benefit concert, which is expected to raise over $100 million in donations.

Billie Joe Armstrong can't say enough good things about that other Billie. Following Sunday night's 2025 Grammy Awards, the Green Day frontman told Billboard that he was still buzzing about sharing the stage with Billie Eilish at last weekend's all-star FireAid benefit concert.

Billie Joe Armstrong gushed that it was an "honor" performing with Billie Eilish at the FireAid benefit concert.

Billie Eilish interviewed Ariana Grande last night after a screening of Wicked at the Directors Guild of America’s theater in Los Angeles. The Q&A, held for Academy and guild members, saw the singers sharing their mutual fandom.

Save for the occasional exception in her discography, Billie Eilish doesn’t do a lot of collaborations, at least not as many as most pop stars as big as she is. That said, she’d be more than happy to link up with Ariana Grande, who actually feels the same way.

Billie Eilish and Ariana Grande gush over 'Wicked' and Grande shares her horror that 'Popular' almost featured trap drums in the movie version