Someday (I Will Understand)

Single by Britney Spears

Released 22 August 2005

Ben Mauro
guitar [3]
Blackcell
background vocals [3]
Bloodshy and Avant
arranger [2-3], mix [2], other instruments [2-3], producer [2-3], recording [2-3], task [2]
Britney Spears
background vocals [2], lead vocals [1-3], piano [1], vocal [4]
Charles McCrorey
assistant [2]
Emma Holmgren
background vocals [2-3]
Fausto Cuevas III
percussion [3]
Francesco Periangeli
assistant [1]
Francesco Perlangeli
assistant [1]
Gromyko Collins
background vocals [3]
Guy Sigsworth
instrument [4], other instruments [1], performer [1], producer [1, 4]
Henrik Jonback
bass [3], guitar [2-3]
Hi‐Bias
remixer [5]
Imogen Heap
background vocals [4]
Jonas Östman
assistant [2]
Kate Havnevik
background vocals [1], guest [1]
Michelle Bell
background vocals [2]
Niklas Flyckt
drums (drum set) [3], mix [2-3]
Per Eklund
drums (drum set) [3]
Sean McGhee
engineer [1, 4], mix [1, 4], programming [1, 4]
Seth Waldmann
assistant [4]
Stephanie Alexander
background vocals [3]
Steve Lunt
arranger [2]
Steven Wolf
drums (drum set) [2]
Thomas Lindberg
bass [2]
Tom Soares
drums (drum set) [2]