
Quick answer — Nami Tamaki performed 2 anime themes, including "Reason" from Mobile Suit Gundam Seed Destiny, "Vivid Telepathy" from ARGEVOLLEN.
Nami Tamaki performed the anime theme songs "Reason" (Mobile Suit Gundam Seed Destiny), "Vivid Telepathy" (ARGEVOLLEN).
Nami Tamaki's first listed anime theme is "Reason", the ending of Mobile Suit Gundam Seed Destiny.