Imagine Dragons' "Radioactive," which the band performed on the Grammy Awards and "Saturday Night Live," ascends 29-4 with 208,000 (up 239%). The band was joined by Kendrick Lamar for both appearances, performing a new remix of the track. Said remixed track was released to retailers the day after the Grammy Awards, and its sales account for 73% of the total sum this week for“Radioactive.” Overall, this is the third-largest sales week for the song, which peaked in popularity last summer.