In 2004 Helder saw 31 performances during 5 concerts with 29 bands at 5 venues in 2 locations.

Date   Concert   Venue   Location  
Sep 12, 2004
Velvet Revolver
  Setlists
Coliseu de Lisboa Lisbon, Lisbon, Portugal
Jul 15, 2004 –
Jul 17, 2004
Xacobeo Festival 2004
Muse / The Cure / Bob Dylan / Massive Attack / Chemical Brothers / Echo & the Bunnymen / The Darkness / The Corrs / Lou Reed / Gary Jules / The Stooges / Starsailor / Iggy & the Stooges / Amaral / Lilith / Eva Amaral
  Setlists
Auditorio Monte do Gozo Santiago de Compostela, Galicia, Spain
Jun 09, 2004 –
Jun 11, 2004
Super Bock Super Rock 2004
Muse / Linkin Park / Pixies / Korn / Massive Attack / Nelly Furtado / Lenny Kravitz / N.E.R.D
  Setlists
Parque das Nações Lisbon, Lisbon, Portugal
Jun 04, 2004
Metallica / Slipknot / Sepultura / Moonspell / Incubus

Rock In Rio

  Setlists
Parque Da Bela Vista Lisbon, Lisbon, Portugal
Feb 27, 2004
Limp Bizkit
  Setlists
Altice Arena Lisbon, Lisbon, Portugal