"Radioactive" is a song by American musician and Kiss member Gene Simmons, released on September 18, 1978, by Casablanca Records.

[1] It peaked at #47 on the US Billboard charts during an eight-week run between April and May 1979.

When the single was released, a limited-edition red vinyl 45 rpm album was made available.

"Radioactive" features Bob Seger and Aerosmith guitarist Joe Perry.

Approximately one minute of the song was edited from the album version for the single, subsequently removing the Prelude, which features musician Janis Ian on vocals.