Based on the Official Nintendo eShop and Xbox Store listings, the 14 typical DLC packs for this edition include: : Volumes 1, 2, and 3. Best of 90's : Volumes 1, 2, and 3. Legendary Hits : Volumes 1 and 2. Party Classics : Volumes 1 and 2.
: Chart Hits, Classic Rock, and Country Hits.
: Eurovision Hits (exclusive to the 2023 version). Key Song Examples from These Packs Notable Songs Included Christmas Hits
"Thank God It's Christmas" (Queen), "Christmas Lights" (Coldplay) "Happier Than Ever" (Billie Eilish), "Shallow" (Lady Gaga) Classic Rock High-energy rock anthems for group performances
The base game typically includes 30 songs, with some editions offering an additional 10 free DLC songs. Downloadable Content / Let's Sing 2023 / Nintendo eShop
The provided file name suggests a collection of 14 Downloadable Content (DLC) packs for the US version of on the Nintendo Switch.