Been a “fan” of Gary Clarke Jr since I saw him at Antone’s in Austin Tx back in 2009 & 2010 and later saw him on the road to fame with a 2013 appearance on Jools.
Didn’t spot he’d played Glastonbury in 2016.
Interesting comment under the YouTube video crediting the rhythm guitar. First time I saw them, Eric (King) Zapata impressed me too – loud in the mix supporting the lead man.
YouTube commenter in 2017: “I want to give a shout out to the rhythm guitarist for that build up and sustain during the peak of Gary’s solo and knowing when to come down. Really nice work.”
I had said in 2009: “Gary Clark Jr. Another great young blues guitarist – heavy too, doubly heavy with Eric Zapata on the very loud and very different rhythm guitar – good job the two obviously get on. Good and loud.”
[Fun fact: Gary is now owner (major shareholder, anyway) of Antone’s. Long-standing venue in Austin needed preservation and relocation more than once, and the last time, Gary stepped-in.]