The Artist: Whitney Houston
The Exhaustion: Did Whitney use exhaustion as a cop-out? Eh, hard to tell. But after getting into a small scuffle with a Delta Airlines attendant recently, she claimed that exhaustion, not drug or alcohol abuse, was to blame.
The Result: Fortunately, Whitney didn't get kicked off the flight. We hope she got some treatment for her exhaustion when she landed, though. She's been very hard at work on a remake of the movie, Sparkle, that's apparently been zapping her of a lot of energy.