All credits for
The Fourth World are adapted from the album's liner notes. '''Kara's Flowers''' •
Adam Levine – lead vocals, lead guitar •
Jesse Carmichael – rhythm guitar, backing vocals •
Mickey Madden – bass • Ryan Dusick – drums,
percussion Additional musicians •
Roger Joseph Manning, Jr. – keyboards •
David Campbell –
string and horn arrangements Production •
Rob Cavallo –
producer •
Jerry Finn –
mixing,
engineer • Ken Allardyce – engineer • Steve Holroyd – engineer • Mark Agostino – second engineer • Billy Bowers – second engineer • Tony Flores – second engineer • Barry Goldberg – second engineer • Brandon Harris – second engineer • Billy Kinsley – second engineer • John Srebalus – second engineer • Mike "Micro" Shaw –
guitar tech • Adam Day – guitar tech •
Bob Ludwig –
mastering Design • Katherine Delaney – layout • Kara's Flowers – layout • Noah Gershman – photography ==Release history==