Radioactive (Cover) Imagine Dragons- Lindsey Stirling and Pentatonix. Multifandom | R a d i o a c t i v e. Radioactive || Multifandom. Radioactive :: MULTI-fandom. Radioactive...[Amy Pond] Radioactive {1200 Subscribers/Retirement Notice?} R a d i o a c t i v e│the doctor ( tufc ) Supernatural | the apocalypse. Radioactive // Castiel. Supernatural - Radioactive.