Rob Swire (born Robert Swire Thompson on 5 November 1982), is an Australian record producer, singer and keyboardist. Swire is best known as lead singer and producer of Australian electronic band Pendulum and is sometimes referred to by the stage name Anscenic. Originally from Perth, Western Australia, he relocated to the United Kingdom in 2003 with fellow Pendulum co-founders Gareth McGrillen and Paul "El Hornet" Harding. Swire has since fulfilled a broad spectrum of roles as a member of Pendulum, ranging from song writing to singing while performing live with an unusual guitar-like MIDI controller – Starr Labs' Ztar Z6-SP. Swire can also play guitar, bass, keyboards and percussion.
Swire was born and raised in Perth, Western Australia. He attended Scotch College, Swanbourne, graduating in 1999, where he first met fellow bandmate Gareth McGrillen. Over the next three years he worked as a record producer for several local drum and bass, breakbeat and metal bands, during which time he occasionally used the stage name "Anscenic".