We know their rivalry is alive and well via Rolling Stone and Twitter...
Allow us to elaborate on our theory!
Now back to the present…
[Image via AKM-GSI.]
Johnny decided to show off his folksy side for the performance of his new single Wildfire, which is a totally toe-tapping tune! Along with his headscarf, he also wore some ripped jeans and a jacket with a peace sign stitched onto it.
"I have a blanket just like that!"
Ch-ch-check out John Mayer jamming out on Letterman! (below)
[Image via Twitter.]