John Mark Heard (1951-1992) was a record producer, singer, and songwriter originally from Macon, Georgia. Mark Heard released 13 studio albums in his lifetime (as Mark Heard & Ideola) also 1 album with Infinity Plus Three), and produced and performed with many other artists as well, such as Daniel Amos, Sam Phillips, Pierce Pettis, Phil Keaggy, Vigilantes of Love, Peter Buck of R.E.M., John Austin, The Choir, Randy Stonehill and Michael Been of The Call.