When Anthony Newley hosted the Hollywood Palace TV show back in 1969. at the very end of the broadcast, he did something special: he recreated his role as Littlechap, the performance that made him a star in Stop the World, I Want to Get Off. Not only does he sing the iconic song from the show, “What Kind of Fool Am I?”, but he does so in full costume and clown makeup. (Applying the makeup live, to make the transformation.)
As an an amusing side note, he seems so intent on getting this important number right while focusing on getting the makeup correct, he screws up the introduction -- repeatedly. Not to worry, he finally gets it right.
As far as I've been able to find, this is the only footage available of Anthony Newley performing Littlechap.