Two Girls, Pop Duet?

My friend and I want to sing a duet for our school talent show. We're both 13, she has a pretty high voice (second soprano-ish) and I'm a lyric contralto. We want an independence song, or one that rejects the girly-girl thing, like Stupid Girls, by P!nk. We'd rather it be fast, with a good beat, and harmony options. Appropriate-ness would be helpful, we go to a K-8 school, but there's always the transpose to French option for innapro-pro parts. Oh, and please, nothing from musicals, Taylor Swift, or others like that. I've got nothing against them, but they're pretty overdone. Thanks!
Asked Nov 02, 2013

TIP: If it's not your answer to this question, please click "Leave a Comment" button under the question to communicate with the question owner.