Karaoke Songs for Teenage Girls?

My friends and I are going to have a karaoke night at my place. We are 12-13. I need a list of appropriate, popular songs to sing along to. Please no Miley Cyrus, Hannah Montana,Demi Lovato, or other Disney-made kiddie stuff. Nothing questionable or inappropriate for our age.I would also enjoy some danceable tunes. Also, what would be good snacks and drinks? Thanks in advance for your help!