HIT ME WITH YOUR BEST SHOT: Click the image above to watch Girl Authority beat up Binky while Jake plays guitar.
DOWNLOAD: Girl Authority, "This Is My Day" (mp3)
The three original songs on GIRL AUTHORITY'S new Road Trip (out Tuesday) instantly catapult them from the Kidz Bop pack -- that runt-litter of tween hopefuls churning out Totally Hits for tots, ad infinitum, until their voices crack -- and herald the coming of . . . what? The next Spice Girls? Who knows? For now, it's enough that Rounder hired the boss's daughter and a dozen of her friends to chirp away encouragingly for two albums running at girl-groop standards from "Dancin' in the Streets" to the Go-Go's "Vacation," a trick cute enough that G.A. have been pulled on stage with the Dresden Dolls and can be found this week making a cameo beating up a guitarist in the new Jake Brennan video. Tanya Donelly, a G.A. superfan via her daughter Gracie, strikes just the right note of grammar-school affirmation in her girl-power anthem "This Is My Day," which incidentally might be the catchiest thing she's written since "Feed the Tree."