Active rock is a radio format used by many commercial radio stations across the United States and Canada. Active rock plays contemporary rock artists with a mix of songs common in the classic rock radio format.
Sean Ross, editor of Billboard Airplay Monitor, described active rock in the late 1990s as album-oriented rock (AOR) "with a greater emphasis on the harder end of the spectrum".
An active rock station may include songs by "classic" artists in its playlist such as Led Zeppelin, Black Sabbath, Judas Priest, AC/DC, Deep Purple and Pink Floyd, whereas a modern rock station would not. Conversely, unlike classic rock stations, an active rock station also plays music by popular current and new rock artists such as Three Days Grace, Staind, Trapt, Puddle of Mudd, Linkin Park, Seether, Chevelle, Godsmack, Hinder, Crossfade, Saving Abel, Cavo, System of a Down, 10 Years, Submersed, Adelitas Way, The Veer Union and Art of Dying. They are also known for playing mainstream heavy metal music such as Metallica, Pantera, Iron Maiden, Dream Theater, Korn, Sepultura, Bullet for My Valentine, Slipknot, Tool, Hatebreed, Mastodon, Five Finger Death Punch and Volbeat. Some stations focus less on