it's time to leave this town- impala
I've never done karaoke at a bar, but I've spent way too much money on karaoke rooms/norebang.

Lady Gaga and Kelly Clarkson are awesome to sing, of course. My Heart Will Go on is always fun. Some big rock song- Wonderwall or Don't Stop Believing or anything of that nature is always good. Maybe some Arashi or Utada Hikaru. IDK, I have pretty much sung it all at this point.