Watch the Hubcap Annie online guitar lesson by TrueFire from Rhythm Guitar Greatest Hits Vol. 1
This is a really simple guitar part but it's such a great groove for jamming over with chords and lead guitar lines. As you can see it's basically an Asus/E to an A/E and then to an E chord. To give the progression as sense of variation I chose to play the first single note riff using notes from the E major pentatonic scale and the second time from the E minor pentatonic scale.
Listen closely and you'll hear that the bass guitar is laying those single note riffs, so you'll have to keep track of which one is coming up as playing the major over minor riff won't sound too good!