For a Pessimist, I'm Pretty Optimistic

Bass Guitar: Brian Weaver

Digital Editor: Dan Korneff

Engineer: Dan Korneff

Mixing Engineer: David Bendeth

Percussion, Synthesizer: David Bendeth

Loops Programmer: David Bendeth

Lead Vocals: Hayley Williams

Assistant Mixing Engineer: Isaiah Abolin

Bass Guitar: Jeremy Davis

Guitar: Josh Farro

Additional Vocals: Josh Farro

Digital Editor: Kato Khoadwala

Engineer: Kato Khoadwala

Mastering Engineer: Ted Jensen

Digital Editor: Tim Flansbaum

Assistant Engineer: Tim Flansbaum

Drums: Zac Farro

Writer: Hayley Williams

Writer: Josh Farro