That's not a majorette, that's a cheerleader. There's a difference. I shall not explain, but see Wikipedia on this. The main difference is the pom poms that the girl in the drawing is holding.
That's what those are called (pom po*n*s? what are you people smoking?).
Yes, I'm late with this answer, but I had to do something about the majorette thing.
I can't help commenting further that "majorette" is the feminine version of the title "drum major", which refers to a man (or these days a woman, too) who leads a marching band. The majorette provides not direction but entertainment, twirling devices similar to that which a major uses to help convey signals.