DK X Seungkwan (; also known as DxS) is a sub-unit of South Korean boy band Seventeen, consisting of vocal team members DK and Seungkwan. Formed by Pledis Entertainment in 2026, the duo debuted on January 12 with the extended play (EP) Serenade.

History

On November 6, 2025, Pledis Entertainment announced that DK and Seungkwan of Seventeen would debut as a new sub-unit, making it the fifth sub-unit of the band. The duo is also a part of the band's another sub-unit BSS. In December, the pair released a cover of Bruno Mars and Lady Gaga's "Die with a Smile", and on December 17, the trailer for their debut extended play (EP) was released, revealing its title and release date, and on December 23, official photos for their album was released. The duo released their first extended play, Serenade, on January 12, 2026. In support of the EP, the pair performed a showcase on January 18 at the CG Art Hall in Seoul.

Discography Extended plays + Title Details Peak chart positions Sales Certifications KORPeak positions on the Circle Album Chart: JPN JPN HotPeak positions on the Billboard Japan Hot Albums chart: US USWorld Serenade Released: January 12, 2026 Label: Pledis Formats: CD, digital download, streaming 3 3 24 195 3 KOR: 698,842Cumulative Sales of Serenade:

JPN: 99,404Cumulative sales for Serenade in Japan: Physical (98,734):

Digital (670): KMCA: 2× Platinum RIAJ: Gold

Singles + Title Year Peak chart position AlbumKORPeak positions on the Circle Digital Chart: "Blue" & "Rockstar": KORHot "Blue" 2026 89 46 Serenade

Other charted songs + Title Year Peak chart position AlbumKOR KORHot "Rockstar" (DK solo) 2026 138 — Serenade "Dream Serenade" (Seungkwan solo) — — "Prelude of Love" — 90 "Guilty Pleasure" — 96 "Silence" — 83 "—" denotes releases that did not chart or were not released in that region.

Videography Music videos Title Year Director(s) "Blue" (Cinema ver.) 2026 Annie Chung "Blue" (Epilogue ver.) Iwa

Live performances Serenade On Stage + Date (2026) City Country Venue April 17IncheonSouth KoreaInspire Arena April 18 April 19 April 29ChibaJapanMakuhari Messe April 30 May 30DaeguSouth KoreaEXCO East Wing Hall May 31 June 6MacaoChinaThe Venetian Arena July 25KaohsiungTaiwanKaohsiung Arena

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References