Knives is the fourth studio album released by punk rock band Aiden. The album is a return to Aiden's punk rock style, after the emo style of the album Conviction. The album was released on May 11, 2009, in the UK and May 12, 2009, in the United States through Victory Records. The band has described this album as, "raw, it's fast, it's pissed". It was recorded and produced by WiL at his own studio, Sleepy Hollow, in Seattle.
On April 1, 2009, "Scavengers of the Damned" was announced as the first single from the album and was made available to buy on iTunes as well as uploaded to the band's MySpace page.