If you’re not a good singer: Semi-Charmed Life by Third Eye Blind. It’s fast enough that you should know the words without reading them, but it’s pretty much talk-singing and doesn’t require much vocal range. For the doo-doo-doo part, it’s pretty high but everyone will sing along with it.

Also Say it Ain’t So by Weezer will get the whole bar clapping and stomping and signing along.