- Musicnotes: https://www.musicnotes.com/sheetmusic/mtd.asp?ppn=MN0109009
- Sheet Music Plus: https://www.sheetmusicplus.com/title/Hey-Soul-Sister-Piano-Vocal/10511708/
- Hal Leonard: https://www.halleonard.com/search/?_sf_category=All&_sf_search=Hey+Soul+Sister+Sheet+Music
- Ultimate Guitar: https://tabs.ultimate-guitar.com/tab/train/hey-soul-sister-tabs-1533051
You may need to create an account and/or purchase the sheet music in order to download it. Additionally, some websites may offer free previews or samples of the sheet music before purchase.