Conversation so far:
What year did Porcupine Tree form?
Porcupine Tree originated in 1987 as a collaborative hoax project by Steven Wilson and Malcolm Stocks.
What was Porcupine Tree's inspiration?
Porcupine Tree was partially inspired by the psychedelic/progressive bands of the 1970s, such as Pink Floyd, that had dominated the music scene during their youth.

Question: Did they cover any of their songs?
Self-contained rewrite: Did Porcupine Tree cover any of their songs?