Easiest song to play on the guitar?
 

i'm thinking if anyone can come up with this its music banter.

Smoke on the Water
All Apologies
Knockin' on Heavens Door
Wild Thing

Lots more

"Beat on the Brat" by the Ramones - 3 chords
"Gloria" by the Doors - 4 chords
"Garden Grove" by Sublime - 2 chords

"2:35" Spacemen 3 - E E G G A A Bflat A G
"Arkansas Revisited" Brian Jonestown Massacre - E chord x2 to A chord, same thing over and over again for ten minutes.

"Brown Eyed Girl"... most definitely "Brown Eyed Girl"...

Or "Forever Young"

pepper by the butthole surfers.

it's the G chord. that's it aside from the solo.

Anything made up of power chords.

.....I thought "revolution" would be a dead give away...just two chords.

"satisfaction"-rolling stones

In isolation any james brown song is easy to play-sometimes literally just one chord.

Joy Division/New Order songs

Not so much... you are forgetting 2 extra chords used in the intro... even so it's still worth mentioning.

stump by buffalo....
all you do is strum randomly and twist taht tremolo to your hearts desire!