- I Constantly Thank God for Esteban - Live at Congress Theater, Chicago, IL, 2008 by Panic! at the Disco prod. by Rob Mathes
- IDGAF by Panic! at the Disco
- If I Were You (I Really Wouldn't Do That) by Panic! at the Disco
- I Have Friends in Holy Spaces by Panic! at the Disco prod. by Rob Mathes
- Impossible Year by Panic! at the Disco prod. by Jake Sinclair
- Impossible Year by dodie (Ft. Jack Howard) prod. by dodie
- Improvised periscope song
- In My Eyes
- Intermission by Panic! at the Disco prod. by Matt Squire
- Into the Unknown (Panic! at the Disco Version) by Panic! at the Disco prod. by Disney & Jake Sinclair
- Introduction by Panic! at the Disco prod. by Matt Squire
- Isn't It Nice by Kate Micucci prod. by Jake Sinclair
- I Think I Thought Forever Proof by Mike Viola prod. by Mike Viola
- It Remembers by Every Time I Die prod. by Will Putney
- It's Almost Halloween by Panic! at the Disco prod. by Panic! at the Disco
- It's Time To Dance, Cause Boys Will Be Boys (Casio) by Panic! at the Disco
- I Wanna Be Free by Panic! at the Disco prod. by John Feldmann
- I Write Sins Not Tradegies by Fame on Fire
- I Write Sins Not Tragedies by Panic! at the Disco prod. by Matt Squire
- I Write Sins Not Tragedies by Fall Out Boy prod. by Fall Out Boy