Melissa Gold was a troubled runaway who turned intro a wrestler and a villain and formed a romantic relationship with Angar, the Screamer. But he got killed in a bank robbery and she screamed in sorrow until her vocal chords got burned. Then, Baron Zemo offered her the chance of participate in a plan to conquer the world while posing as heroes. Melissa accepted and she became Songbird. Little by little, the once villain, turned into a respectable hero, and one of the most interesting Marvel characters.
Let's talk about Songbird here, and what you expect for Melissa in the Heroic Age.