"O Superman" is part of a larger work called "America" and was also included on an LP titled "Big Science". Here is the song that gave its title to the album:
I think my favorite song from the album is the first track, "From the Air":
You might locate Laurie Anderson's compositions as being somewhere on a line drawn between Philip Glass and Bob Dylan, but with a strong visual component. She has a coolly ironic angle on American culture and combines it with some simple, but eerie and expressive musical ideas.