Elton John’s I Can’t Dance.
I did that song " I like big Butts" with a buddy of mine who knew the song real well. I got a big black lady from the audience up on stage and she was a great dancer. We slapped her butt and show cased it throughout the song. The audience loved it.
I can’t believe this thread has gone this far without someone chiming in that they would never be caught dead singing karaoke, or how much they hate it.
And I certainly won’t be that guy.
With a little liquid lubrication, I’ve been know to KILL a room with Safety Dance
I thought that was Genesis.
I will, but not because I think it’s stupid. It’s because I’m such a lousy singer I don’t think it would be fair to make people have to listen to me. My sister, on the other hand, has a beautiful voice. Go figure. 
I’m really the first for Total Eclipse of the Heart?
Should’ve Been A Cowboy by Toby Keith, and I’m ashamed to say, I sang it perfectly in time and didn’t miss a single word of the lyrics without looking at the screen:o
My go-to warm-up song is typically “Brandy, You’re a Fine Girl,” by Looking Glass, which is hokey enough.
But one night, at a karaoke where a friend was hosting, a girl got up to sing Charlene’s “Never Been to Me.” The song started, and she said into the mike, “Um…no, I can’t do this,” and she got off stage. Knowing my host friend was reluctant to fade a song out after it started (just not his style), I jumped up, grabbed the mike, and started singing:
“Ooh I’ve been to Georgia and California, and, anywhere I could run
Took the hand of a preacherman and we made love in the sun
But I ran out of places and friendly faces because I had to be free
I’ve been to paradise, but I’ve never been to me…”
And I went on to finish the song.
The combination of me, with my big male voice; and this song, dealing with an experienced woman’s advice to another, made it doubly funny. The crowd was laughing like there was no tomorrow, and I got a big hand when I finished.
My wife and I fucking kill this song. We have dance moves and explosions. In addition, depending on the crowd temperature, we throw in the Wedding-Crashers-style F-bombs, as well as modifying the lyrics to say “we’re living in a trailer park and giving off sparks” for reasons unknown but hilarious to us.
My karaoke repertoire is pretty limited, but if I’m drunk enough I’m fucking awesome (to me and possibly nobody else but really who cares). Folsom Prison Blues is my stand-by.
One place had the theme song from Star Blazers, so the Americans in the group sang that while the Japanese sang the Japanese version, Uchu Senkan Yamato, at the same time. A glorious clusterfuck.