"Deep Blue" is the third studio album by the Australian rock band Parkway Drive, released on June 25, 2010, under the labels Burning Heart Records, Epitaph Records, and Resist Records. This album features a total of 13 tracks, showcasing the band's signature blend of metal and rock, characterized by powerful riffs and intense vocals. The album includes contributions from notable artists such as Brett Gurewitz and Marshall Lichtenwaldt, further enriching its sound. "Deep Blue" marks a significant evolution in Parkway Drive’s musical style, incorporating more melodic elements alongside their established hardcore roots. Notable tracks from the album include "Home Is for the Heartless" and "Sleepwalker," which reflect the band's exploration of themes such as existentialism and the human condition. The album received critical acclaim for its production quality and lyrical depth, solidifying Parkway Drive's position within the metal scene. With its release, "Deep Blue" not only expanded the band's fanbase but also contributed to the ongoing evolution of the metal genre in the 2010s.