"Radioactive" is a song by American pop rock band Imagine Dragons from their major-label debut EP Continued Silence and later on their debut studio album, Night Visions (2012), as the opening track. It was first sent to modern rock radio on October 29, 2012,[1] and then released to contemporary hit radio on April 9, 2013. Musically, "Radioactive" is an electronic rock and alternative rock song with elements of dubstep. In a 2021 podcast interview called The Turning Point, Dan Reynolds revealed that after almost a decade, he had realized that lyrics were actually about him not giving up hope after losing faith in Mormonism.