A classic. And Rush covered it, too!
Rush version of Summertime Blues (live). From their album of covers as a tribute to the music that they loved and inspired them.
https://www.youtube.com/watch?v=aOtbUAzoEfU
Working Man, Live (2011). Still rocking it since 1974! (Better than when they were younger in some regards.)
https://www.youtube.com/watch?v=sI5VuBzo-Qc