BTS's Jungkook has set a significant record with his solo music.

Jungkook released his first solo single, "Seven," in July last year. At the same time as the song was released, a music video was uploaded to Hive Labels' YouTube channel.

As of the morning of the 20th, the music video had accumulated over 400 million views. It added another 100 million views in about six months after reaching 300 million views in December last year.

It has attracted attention for its cinematic storyline. It starred actress Han So-hee. She and Jung Kook acted as lovers. It showed a dramatic evolution of emotions.

"Seven" is a serenade about wanting to be with your loved one for a whole week. It features an addictive melody, acoustic guitar, and UK garage rhythm.

Upon its release, the song took the global music market by storm. The song became a mega-hit, topping the US Billboard Hot 100 and the UK Official Singles Chart at number three.

Music streaming was also strong. Spotify reached 1 billion streams in the shortest time since its inception. This is a Guinness World Record.