'Bye, Summer': IU bids farewell to summer with surprise ballad and heartfelt music video

IU released the digital single 'Bye, Summer' at 7 a.m. KST on September 10 as a surprise for all her fans. The ballad blends lyrical vocals with a breezy band sound that recalls the last cool winds, echoing audience buzz since its stage preview. As reported by MBN, the drop was framed as a heartfelt gift to close a long, passion-filled summer shared with fans.

From stage moment to official drop

The song gained early attention during last September's Seoul encore of IU's world tour, performed on guitar as rain eased near the finale. A subsequent live clip and fan requests paved the way for an official release, now paired with a lyric video. The visual tracks two youth building memories in the sun before parting at season's end, mirroring the single's tender arc.

Visuals underline the theme

The lyric video arrived alongside the single, reinforcing a narrative of fleeting days and quiet goodbyes anchored by IU's emotive delivery. Its soft band textures and reflective lines, aligning with fans' nostalgia. The package positions the track as both a companion to recent live moments and a standalone seasonal chapter.

Drama momentum builds

While promoting the single, IU is filming MBC's upcoming romance '21st Century Grand Lady' (working title '21st Century Grand Prince's Wife'), set in a modern constitutional monarchy and slated for a first-half 2026 broadcast slot. She plays Seong Hee-joo, a driven chaebol heiress who enters a strategic marriage with Prince Lee Wan, portrayed by Byun Woo-seok, in a class-crossing narrative developed from an award-winning script. Official notices highlight a star ensemble including Noh Sang-hyun and Gong Seung-yeon, heightening anticipation for the series.