Well, depending on how good your guitarist is, there's some Jimi Hendrix to be had. :D

Led Zeppelin:

Immigrant Song (Live version if you can handle the solo)

Since I've Been Lovin' You

Rock 'n Roll's a good one to get the crowd going.

AC/DC:

Sin City

Queen:

We will rock you. (Do that at a high school and see what happens, great song for that low of an IQ in a big room. :D:D)