Listen to Iron Man Theme (From Iron Man 3) online. Iron Man Theme (From Iron Man 3) is an English language song and is sung by Cinematic Legacy. Iron Man Theme (From Iron Man 3), from the album Avengers: Endgame - Anthems (Motion Picture Soundtracks), was released in the year 2020. The duration of the song is 2:22. Download English songs online from JioSaavn.