light grey tailored pants
white, pink or lavender button down shirt
grey/white sweater (worn around neck) or vest/waistcoat.
Socks and shoes to match (no sneakers)
white fedora or golf cap
Require a second outfit, more fancy for Bop Til You Drop. This could be done by a change of shirt, addition of vest or hat or an entire costume change. Coordinate with Sharpay if possible.
Any females with long hair playing this role need to wear a short-hair blond male wig like one of these: