Big Name Fan: Conan O'Brien. He was a big supporter since stumbling upon one of the band's early performances at a Detroit bowling alley while filming a sketch for Late Night in the late 90's. Other Jack White projects have frequently performed on O'Brien's shows since then.
Conan also appears in the video for "Denial Twist".
Bob Dylan isn't usually one to invite artists half his age to join him on stage. The exception? Jack White, who's performed with him more than once.