Question of the Day: Donovan's Simplicity

Tomorrow night, Donovan Leitch will be inducted into the
Songwriter's Hall of Fame here in New York City.
Yesterday, we asked you for a song you consider a work of art. Much of
Donovan's early work was beautifully simple. Our question today: What's
the 'simplest' song you can think of? Simple, but beautiful. Or
powerful. Leave your comments and song suggestions. Thanks!
Here's what we played:
The Shins "Simple Song"
Lou Reed "Sweet Jane"
Donovan "Colours"
Donovan "Catch the Wind"