What would be the best song choice to sing at a middle school play audition?

It would be good to know what show you're auditioning for and what role. ADDED LATER: Okay, now that I know what show and what role you're auditioning for, it's easier to advise you. Generally speaking, it's best to audition for a traditional Broadway-style musical with a traditional Broadway-style song, rather than use a pop or country song. The problem is that you haven't given yourself much time to learn and practice an audition song, so I suggest that you go with a song you know well and are comfortable with. If the only thing you've got that fits that description is a Taylor Swift song, then so be it. By the way,"The Rose" is generally a bad choice for an audition - it's the same tune over and over and shows very little range.