Kill This Love took two days and 14 hours to hit the milestone - beating the record held by Psy's Gentleman.

YouTube said Kill This Love earned 56.7 million views in its first 24 hours.

That meant it also broke the record for the highest first-day YouTube views, ahead of Ariana Grande's Thank U, Next.

YouTube's biggest 24-hour debuts

1. Blackpink - Kill This Love, 56.7 million
2. Ariana Grande - Thank U, Next, 55.4 million
3. BTS - IDOL Official, 45.9 million
4. Taylor Swift - Look What You Made Me Do, 43.2 million
5. Eminem - Killshot, 38.1 million

Formed in 2016, Blackpink - with members Jisoo, Jennie, Rosé and Lisa - released their debut album Square One in August of that year. The album gave them their first number one single in their homeland with the track Whistle.

They became the highest-charting female K-pop act in US chart history and their 2018 single Ddu-Du Ddu-Du is the most-viewed music video by a K-pop group on YouTube.

Launched on YouTube Premiere, the new video sees the band members sing in Korean and English and perform at one point in a huge heart-shaped bear trap.