At left, Everett Bradley, who penned and sings some of Swing!'s neo and classic swing tunes. At right, West Coast Swing dance champion Beverly Durand and Broadway's Laura Benanti, who handles several of the show's comic numbers. Swing! features world-class Swing dancers, a Swing band and acclaimed vocalists Benanti, Bradley, Casey MacGill and jazz/cabaret star Ann Hampton Callaway in her Broadway debut. The 30 dance numbers represent the many forms of swing that are popular around the world including neo-Swing dances, country western, Latin and traditional Swing dancing. Swing! opened Dec. 9 at the St. James Theatre.