When it comes to earthshaking songs--the ones that signal a tectonic shift in the current musical landscape--there is "Johnny B. Goode" . . . there is "Good Vibrations" . . . and there is "I Feel Love." A disco touchstone recorded by Donna Summer in 1976 and released on her fifth studio album, I Remember Yesterday, in 1977, "I Feel Love" is one of the most important records in music history, and one of the most influential.