You're out with friends at karaoke. Your turn is next. But dang, you still don't know what song to sing, and you're not a great singer. What's more, someone just nailed "You Oughta Know" by Alanis ...

We’ve all been there: It’s a Saturday night, and the bar has gotten just crowded enough that no one is listening and everyone is standing around, nary a chair to sit on. The tenor of the room — that ...