Here is a fun one. Two guys / one guitar playing pipeline. It's Stevie Ray Vaughn and his little brother Jimmy. During the last year or so of Stevie's life he went on tour with Jimmy's band the fabulous Thunderbirds (who recorded "ain't that tough enough" which is a pretty good song). Anyway, this was part of one of those performances. Also, the album that Jimmy and Stevie cut together is called "family style". it's a really good. Linked a playlist below. I can only imagine what life was like growing up in the Vaughn household.
Personal note: I got to see Stevie Ray live in 1985. It was in a very small venue, McDonald arena at Missouri State University. It's the only event I've ever heard of at that auditorium before or since. Anyway, it was a very intimate concert with a lot of interaction, calling out fav songs, etc. The guy is/was a real guitar players guitar player. Amazing what he could make his strat do.
http://m.youtube.com/playlist?list=ALBTKoXRg38BATlpZj9VYzklW218CtkPZL