The following is a listing of officially released works by the English band Porcupine Tree. The band has released eleven major studio albums and 7 EPs, as well as many limited editions and revamped material. On 2007 they collaborated with Yoko Ono on the song "Death of Samantha", in Ono's remix album Yes, I'm a Witch. A live album from the Fear of a Blank Planet tour, Ilosaarirock, was released in March 2009. It was recorded from their performance at the Ilosaarirock Festival on 14 July 2007. However, this album was only released to members of the Residents of a Blank Planet ticketing club.