Watch the Kickin Mule online guitar lesson by Robbie Calvo from The Rhythm Architect
I'm very aware that a lot of lessons and chord jams have revolved around the E7(#9) chord so I decided to change it up and play this groove with a D7(#9) and also drop the low E string down to D as well.
This is a reasonably slow groove so sit back on the beat a little bit and make it feel lazy. The chords shouldn't challenge you too much it's the feel that will get you on this one. A great track to jam leads over too.