For me, a dancer is part of an artist's entertainment - 'backup dancer' isn't even in my vocabulary.
“In the councils of government, we must guard against the acquisition of unwarranted influence, whether sought or unsought, by the military-industrial complex. The potential for the disastrous rise of misplaced power exists and will persist.”
“Mediocrity is now, as formerly, dangerous, commonly fatal, to the poet; but among even the successful writers of prose, those who rise sensibly above it are the very rarest exceptions.”