Tidlige hits:
- "Hvad gør dig smuk" (2011)
- "Gotta Be You" (2011)
- "One Thing" (2012)
- "Lev mens vi er unge" (2012)
- "Little Things" (2012)
Senere hits:
- "Bedste sang nogensinde" (2013)
- "Mit livs historie" (2013)
- "Midnight Memories" (2013)
- "Du &jeg" (2014)
- "Stæl min pige" (2014)
Solokarrierer:
- "Tidens tegn" (Harry Styles, 2017)
- "Pillowtalk" (Zayn Malik, 2016)
- "Drag Me Down" (One Direction uden Zayn Malik, 2015)
- "Infinity" (Liam Payne, 2018)
- "Slow Hands" (Niall Horan, 2017)
- "Issues" (Julia Michaels, 2017) [samskrevet af Louis Tomlinson]
Samarbejdsprojekter:
- "I Don't Wanna Live Forever" (Zayn Malik &Taylor Swift, 2016)
- "No Lie" (Sean Paul &Dua Lipa med One Direction, 2016)
- "Hjem" (Liam Payne &Cheryl Cole, 2017)