Then, Now, Forever (feat. J.Y. Park)

A crossover flare where a rookie girl group meets the founder who built the house they live in, and both sides play up the contrast. The production is bright, chest-thumping J.Y. Park signature funk-pop — slapping bass, horn-adjacent synth stabs, handclaps mixed high, a swing in the drums that comes from an older generation of Korean dance music rather than the trap-leaning template ITZY usually rides. Vocally it's a relay: Yeji and Ryujin bring that hard-edged, nasal-forward attack, Yuna and Chaeryeong soften the corners, and then Park drops in with his conversational, half-spoken croon and instantly dates the track in the best way, a mentor's voice cutting into a young room. The lyric is a promise of durability — that whatever the moment, the bond and the music hold across time — sung with the earnest overstatement K-pop reserves for anniversary and label-family songs. Culturally it functions as a lineage document: JYP Entertainment's founder handing continuity to the newest act, a gesture Korean fans read fluently. Best heard as a bonus track after the singles, when the album's aggression relaxes and you want something grinning and warm — driving with the windows down, or in that late stretch of a fan playlist where sincerity beats concept.