Article continues below advertisementTaylor Swift's former backing dancer is facing fierce backlash after his new ballet was branded a "shameless cash-in" tied to the recent Timothée Chalamet ballet and opera storm.Kameron N Saunders, 33, a Missouri-born choreographer best known for working as a backing dancer for Swift and Chappell Roan, premiered his latest work, Proper Conduct, as part of English National Ballet's Body & Soul double bill in London.