diff --git a/frontend/public/thumbnail/BEAR ATTACK.webp b/frontend/public/thumbnail/BEAR ATTACK.webp
new file mode 100644
index 0000000..188b257
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diff --git a/frontend/public/thumbnail/Bearz Day.webp b/frontend/public/thumbnail/Bearz Day.webp
new file mode 100644
index 0000000..4be676f
Binary files /dev/null and b/frontend/public/thumbnail/Bearz Day.webp differ
diff --git a/frontend/public/thumbnail/잠실 G-Thang.webp b/frontend/public/thumbnail/잠실 G-Thang.webp
new file mode 100644
index 0000000..e97a737
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diff --git a/frontend/public/thumbnail/잠실의 곰들.webp b/frontend/public/thumbnail/잠실의 곰들.webp
new file mode 100644
index 0000000..bd2f07d
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diff --git a/frontend/src/lib/playlist.ts b/frontend/src/lib/playlist.ts
index 2dcd161..ef0a46e 100644
--- a/frontend/src/lib/playlist.ts
+++ b/frontend/src/lib/playlist.ts
@@ -29,10 +29,10 @@ export const PATH_PLAYLISTS: Record<string, Track[]> = {
 
 // 두산 베어스 응원가 — 특정 경기가 아니라 두산(OB) 전 경기 공통 적용
 const DOOSAN_TRACKS: Track[] = [
-  { title: "잠실의 곰들", artist: "aio2o", src: "/audio/잠실의 곰들.mp3" },
-  { title: "BEAR ATTACK", artist: "aio2o", src: "/audio/BEAR ATTACK.mp3" },
-  { title: "잠실 G-Thang", artist: "aio2o", src: "/audio/잠실 G-Thang.mp3" },
-  { title: "Bearz Day", artist: "aio2o", src: "/audio/Bearz Day.mp3" },
+  { title: "잠실의 곰들", artist: "aio2o", src: "/audio/잠실의 곰들.mp3", cover: "/thumbnail/잠실의 곰들.webp" },
+  { title: "BEAR ATTACK", artist: "aio2o", src: "/audio/BEAR ATTACK.mp3", cover: "/thumbnail/BEAR ATTACK.webp" },
+  { title: "잠실 G-Thang", artist: "aio2o", src: "/audio/잠실 G-Thang.mp3", cover: "/thumbnail/잠실 G-Thang.webp" },
+  { title: "Bearz Day", artist: "aio2o", src: "/audio/Bearz Day.mp3", cover: "/thumbnail/Bearz Day.webp" },
 ];
 
 // 경로 → 트랙 목록. 정확일치(PATH_PLAYLISTS) 우선, 그 외 KBO 두산 경기