![K-pop girl group Loona had a top trending topic on Twitter after they released their music video for 'Butterfly'.](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/U6L3XRBRI3YWR4VS2IGC3YF4QI.jpg?smart=true&auth=b238496468290c152c82d93c1b4b6452dd2aea4247d740863e7d736062022f69&width=400&height=225)
K-pop girl group Loona had a top trending topic on Twitter after they released their music video for 'Butterfly'.
K-pop girl group Loona had a top trending topic on Twitter after they released their music video for 'Butterfly'.
What is #Loona_Butterfly? Meet the K-pop group that's inspired the trending hashtag on Twitter
Korean girl group Loona are seriously gaining traction in the world of K-pop