The character, Dazzler, was a commissioned project from record company Casablanca Records in the late 70s. She was originally called The Disco Queen with the powers to make people tell the truth. The character was fleshed out by a committee of editors at Marvel Comics, and Casablanca kept making conceptual changes to the character. Eventually, Casablanca dropped out of the project before her first issue was released, and Marvel took ownership and creative control.
Though originally commissioned as a disco singer, the Dazzler was shifted to other musical genres including rock, country, and adult contemporary once Marvel Comics assumed creative control.