"Demons" is a rock song by the American independent rock band Imagine Dragons. It was written by the Imagine Dragons band and Alex da Kid and composed by Alex da Kid. It was included in the album released in February 2012. "Night Visions" is the fourth single from the album. The song was on the Billboard chart, ranking at No. 6 for 4 consecutive weeks, in the top 10 for 12 consecutive weeks, and in the Billboard Top 100 for more than a year. In 2014, it won the Much Music Video Award for Best Group Video of the Year and the iHeart Radio Music Award of the Year. Best Alternative Rock Song 1. Demons also serves as the theme song for the movie "The Nine-Story Demon Tower".