On October 20, Seventeen unveiled the music video teaser on its YouTube channel.

The video started with the phrase 'Music Not Found'. A world without music was filled with the sound of wind, birds, and mechanical sounds.

Seventeen appeared as the music began with positive and bright energy. The group raised expectations for the story of the music video.

The group's main track shows the harmony of cheerful synth and brass sounds, making you feel like you're at a festival full of happiness.

The new album consists of eight tracks, including 'SOS', 'Diamond Days', 'Headliner', and the unit's track 'Back to White'.

The album has garnered an impressive total of 467 million stock pre-orders, surpassing their previous record for other albums.

Meanwhile, 'Seventeenth Heaven' will be released on various music platforms on October 23 at 6 pm.

<Translated by=Jiwon Kim(Dispatch)>