"Painkiller" is a song by Canadian rock band Three Days Grace.[1][2] This is the first single released by Three Days Grace with new singer Matt Walst, following the departure of Adam Gontier. It is the lead single off the band's fifth studio album Human.
Background
On March 28, 2014, the band officially announced that Matt Walst would be Adam Gontier's permanent replacement in the band.[3] Within the announcement, it was teased that new music would be heard the following week and on March 31, the band uploaded "Painkiller" onto their YouTube account.[4] The song was officially released through iTunes on April 1. Drummer Neil Sanderson talked about the meaning behind the song in a making of video released on the band's YouTube account:
"Painkiller, that song is about how everybody is addicted to something. It's written from the perspective of the vice that you need to be addicted to it. The love of the drug, it's the villain who taunts you into wanting more."[5]