One of the great challenges faced by the events during Grammy Week, including the FireAid benefit, is how to set the proper tone: How do you have a celebratory event like big concert or awards show ...

The all-star FireAid benefit in Los Angeles began with Green Day and Billie Eilish teaming up for the 'American Idiot' deep cut "Last Night on Earth." ...

Billie Eilish joined Green Day for a performance of the band's song "Last Night on Earth" at the FireAid benefit concert on Thursday. Get details.

Billie Eilish has joined Green Day onstage at the FireAid Benefit Concert. Watch their performance of “Last Night on Earth.” ...

Scott Dudelson/Getty Images for FIREAID Billie Eilish and Green Day teamed up for a live rendition of ‘Last Night On Earth’ for the LA FireAid benefit concert last night (January 30).