We've been watching YouTube for days to see when someone would finally upload this clip of Sonic Youth totally nailing "Incinerate" live on "The Late Show With David Letterman" last week. A real hot performance, particularly into the third minute when Thurston starts scritching it high up on the neck of the guitar and then plummets down to that open low D at the start of the next section. Hot hot hot. Check it out. "Incinerate" is from Sonic Youth's Rather Ripped, which streeted last week.