Len, 65, told this week's Heat magazine: "Bruno and Craig have the most make-up on.
"They have eye shadow, eyeliner, and God only knows what."
The head judge reckons if it was up to him, he would ditch the slap altogether.
He said: "I really don't get it and would rather have nothing on if I could. They go to town though, and when they get back to their dressing rooms, they slap on even more of their own."
But straight-talking east Londoner Len reckons he doesn't need to rely on the fake tan thanks to his frequent jaunts to the States. Len is a judge on the American spin-off Dancing With The Stars.