"Shallow" is a single by British progressive rock band Porcupine Tree, taken from the Deadwing album, released in January 2005 exclusively in the United States for radio broadcast purposes. The song managed to enter the Billboard's Hot Mainstream Rock Tracks chart, peaking at #26, without the help of any music video. "Shallow" was featured in the movie and on the soundtrack for the film Four Brothers in which credits Colin Edwin curiously appears as Colin Balch; he is also credited under this name in the manuscript book for Deadwing.