Eruption by Van Halen is an about 2 minute long song that is pretty much just a whole amazing guitar solo. I learned how to play this and played it at a school-wide guitar competition and I won first place so obviously its a very good guitar solo.
the tab for the song is here.
It is probably a song for intermediate to advanced players. It requires using techniques pull-offs, hammer-ons, whamming, tremolo picking, vibrato and tapping.