“I Got a Line on You”  is a rock song by American rock band Spirit, originally recorded during the sessions for their second album, The Family That Plays Together, between March 11 and September 18, 1968.  The song was composed by guitarist/singer Randy California, recorded in sessions produced by Lou Adler.  The single credits engineering by Eric Wienbang.  Released as a single ahead of the album by Ode Records in the US in October 1968, it began a slow rise up the charts.  It was picked up by college radio in late November, and the song finally peaked at #25 on the U.S. Top 100 on March 15, 1969.  A Billboard review brief called it “the near definitive rock single”.  (More from Wikipedia)