
Quick answer — Porno Graffitti performed 2 anime themes, including "Melissa" from Fullmetal Alchemist, "The Day" from My Hero Academia.
Porno Graffitti performed the anime theme songs "Melissa" (Fullmetal Alchemist), "The Day" (My Hero Academia).
Porno Graffitti's first listed anime theme is "Melissa", the opening of Fullmetal Alchemist.