Karaoke Anyone?

I have always been  a wreck when it comes to karaoke. I feel like the expectations are always too high or too low, and I don't like the pressure. It doesn't help that I have seriously talented friends that are somewhat impossible to sing after. However, karaoke is the social activity of the CU grad student group. At least once a week the get together to belt out everything from Britney to the Commodores. I finally got over my fears last night and managed to get through a song without running off the stage. Major accomplishment, if I do say so myself.

However, it got me thinking. What songs are good for karaoke? I feel like you can rock a song, but if it's not a crowd pleaser you are just as likely to get blank stares rather than applause afterward. I know this is going to be a reoccurring social engagement for the next 5 years of Ian's grad school, so I'd better figure out what's a show stopper, and what just stops the show. I know a bunch of you out there are karaoke experts, so have at it in the comments. What is your favorite karaoke to sing/hear?