I like to watch musicians I've never seen or heard play very well. I'm going to post a link to a video of a bassist, guitarist, and drummer that fascinates me to watch. I encourage people to do the same. Pretty amazing to watch some people play.
Tal Wilkenfeld and Jeff Beck play a bass duet on one bass - it doesn't hurt that she's cute
Jeff Loomis playing selections of Nevermore - his hands look skeletal
Gavin Harrison playing Plasson - drumming really picks up in the second half
And for piano lovers, La Campanella by Liszt
