Two of the evening top-billed acts, Billie Eilish and Green Day, decided to sneak in an onstage duet. As the band geared up to play their beloved 21st Century Breakdown track “Last Night On Earth,” Eilish shocked viewers by picking up a microphone ahead of her set.

The massive LA wildfire benefit concert FireAid is happening in Inglewood right now at both the Intuit Dome and Kia Forum. At the latter, the night is starting off strong with Billie Eilish joining Green Day for 21st Century Breakdown’s “Last Night On Earth.

Billie Eilish and Finneas performed acoustic renditions of "Wildflower," "The Greatest," and "Birds of a Feather" at FireAid.

Billie Eilish fans can’t believe her older brother, Finneas, helps her write music after paying attention to some questionable lyrics in 'Lunch'.

Billie Eilish's debut fragrance became a surprise favorite among the PerfumeTok community, with many falling in love with the Amber Gourmand scent featuring notes of sugared petals, creamy vanilla ...

Beauty muses Billie Eilish and Zoë Kravitz prove brown eyeliner shouldn't be underestimated. Shop BAZAAR's best brown eyeliner pencils edit.

Enter TikTok’s latest solution: the lip stain. Fear not, these aren’t the dodgy lip stains of the early ‘00s that leave you looking like you’ve just tucked into a punnet of raspberries and forgotten to wipe your mouth.

For those who haven’t caught wind of the hype, the Nyx formula – unlike Wonderskin’s – doesn’t have to be peeled or wiped off and, rather, can be worn as both a sheer gloss and a stain. Scroll on for my full comparison (and clear winner).

In honor of its Musical.ly roots, here are the 15 most-followed musicians on TikTok as a U.S. ban looms with Bella Poarch, Addison Rae, Kimberly Loaiza, BTS and more.

At Sunday night's Grammys, will Beyoncé finally win album of the year? Will Taylor Swift take that prize for the fifth time? Or will a new generation of pop stars claim the moment?

Earth, Wind & Fire did a medley of their biggest hits: “That’s the Way of the World,” “Shining Star” and “September.” The Black Crowes backed up John Fogerty for “Have You Ever Seen the Rain?” Then the band was joined by Slash.