Pendulum are an Australian-British drum and bass/rock band founded in 2002 in Perth, Western Australia by Rob Swire, Gareth McGrillen, and Paul Harding.

Swire and McGrillen were members of the metal band known as Xygen. After hearing Konflict's "Messiah" at a club, they were inspired to enter into the drum and bass genre. They founded Pendulum with Harding, who was a veteran DJ into the drum and bass scene. In 2003 the band relocated to the United Kingdom.

While Hold Your Colour holds true to the drum and bass genre, Pendulum have since experimented with mixing other genres into their work, as can be heard on In Silico and Immersion. Their newer releases incorporate styles from genres such as alternative rock, heavy metal, dubstep, industrial, hard rock and house music.

Ajapai is a dubstep DJ from Tokyo, Japan.