Headin' Out to Eden
"Headin' Out to Eden" was a song in the 23rd century.

It was sung by Adam after he and the other followers of Doctor Sevrin had taken control of the  and were heading for the mysterious planet Eden. ()

Lyrics
Heading out to EdenYea brotherHeading out to EdenNo more trouble in my body or my mindGonna live like a king on whatever I findEat all the fruit and throw away the rindYea brother, yea.
Amen

Background information
The music was written by Charles Napier and Craig Robertson, with lyrics by Arthur Heinemann, and recorded under the supervision of Wilbur Hatch. It features vocals by Napier, organ by Clark E. Spangler, guitar by John Caleffie, and percussion by Larry Bunker. It was recorded on . (Star Trek: The Original Series Soundtrack Collection , These Are the Voyages: TOS Season Three, p. 555) 

The song's title was formatted as "Heading Out to Eden" in the episode's script.
Musical compositions