The World On arirang

With a blend of a futuristic synth sound and a slow beat in trap BPM, "Nostalgic Night" is about missing someone on a nostalgic night.

The special duet song was written and composed by Paul Kim. It's about the heart-fluttering moments that went by unnoticed in a friendship.

It's about taking bold actions in pursuit of freedom, while escaping oppression and restrictions. It also describes the group's aspirations to expand into a brand new world.

It depicts the mysterious side of the universe and the emptiness it represents. It has a flawless blend of emotional vocals and instrumental sounds, and it describes the motions that are beyond love and the heartache of a breakup.

It accentuates a completely different side of Jay Park compared to his previous album. The music video features Bora of Sistar, whom Jay Park has mentioned many times as his ideal type.

This is a pop R&B song released by Jun Hyo-seong in time for the 10th anniversary of her debut. In this song, she expresses her gratitude toward her fans for always waiting for her.