Never knew Van Morrison had covered this song until we rented The Departed last week........always liked the orginial and this one is very good too. Great video at YouTube..............it's outstanding.
http://www.youtube.com/watch?v=0dc45zHdfRgThe soundtrack of the 2006 Academy Award winning Martin Scorsese film The Departed includes the version of the song originally featured on the album The Wall: Live in Berlin (1990). Roger Waters plays with Van Morrison, Levon Helm, Garth Hudson and Rick Danko (collectively known in this instance as Van Morrison and the Band), with Waters singing his original parts and Morrison singing David Gilmour's parts. Van Morrison's 2007 compilation album, Van Morrison at the Movies - Soundtrack Hits includes this version of "Comfortably Numb."
Comfortably Numb" is a song by the British (progressive) rock band Pink Floyd, which was released on the 1979 double-album The Wall. It was also released as a single in the same year, with "Hey You" as the B-side. It is one of only three songs on the album for which writing credits are shared between Roger Waters and David Gilmour – most of the music on "Comfortably Numb" was written by Gilmour, while Waters contributed the lyrics and some additional notes. "Comfortably Numb" is one of the most famous Pink Floyd songs, and is known especially for its guitar solos. In 2004, the song was ranked #314 on Rolling Stone's list of the 500 Greatest Songs of All Time
http://en.wikipedia.org/wiki/Comfortably_Numb