In 2005, Cave In drummer John-Robert Conners left the band after a wrist injury that prevented him from being able to play. Ben Koller became his temporary replacement during Cave In's tour in support of their fourth studio album, "Perfect Pitch Black". Before the group went on hiatus in 2006, the band recorded two songs with Koller. The two songs, "Dead Already" and "Shapeshifter," were released together on a limited edition cassette single sold during 2005 and 2006 tours. Conners returned to Cave In when they reunited in 2009.