While it's safe to assume that by now someone has informed her about the iconic rock band, her previous lack of knowledge was enough to stir up quite a debate about generational gaps on Twitter - resulting in Van Halen and Billie Eilish becoming trending topics together on Monday.
Billie Eilish is sorry to that band.More news: Blackhawks reviewing assistant Marc Crawford's conduct
Billie Eilish recently revealed that she isn't familiar with the rock band Van Halen - but one member of the group is defending the 17-year-old singer.
"Who?" replies Billie, looking mystified.More news: Lightning in tough stretch, face Hurricanes next
Unsurprisingly, it was the middle-aged men who were most enraged by the revelation that not every person in the world is aware of a band that peaked in the '80s - which was at least 20 years before Billie Eilish was even born.
"Billie Eilish doesn't know who Van Halen is". Eddie Van Halen's guitar playing was revolutionary, and the band's songs are deeply memorable, but there's absolutely no reason that the girl who wrote Bad Guy would've spent any portion of her life in her room listening to Hot For Teacher or I'm The One. She's cool. If you haven't heard of [Van Halen], go check them out.
The 28-year-old bassist weighed in with a level-headed response to hopefully discourage any Van Halen fans from freaking out too much.More news: Lori Loughlin, lawyers gave Olivia Jade the 'clear' to return to YouTube
All that said, if a Billie Eilish/Van Halen collaboration develops, we'll be the first to let you know.