A musical group you may never have heard of proved they're one in a billion.
BLACKPINK became the first-ever K-pop group to reach one billion views on YouTube.
RELATED: K-pop sensation BlackPink makes US TV debut on 'GMA'
[Ads /]
It took just under a year and a half for the video for their song "Ddu-Du Ddu-Du" to reach the milestone.
The only other Korean artist to earn one billion views is Psy for his song "Gangnam Style." That video now has nearly 3.5 billion views.
[Ads /]
Both videos are still billions of views away from being the all-time most viewed YouTube video. That title goes to the Spanish-language hit "Despacito" by Luis Fonsi and Daddy Yankee.