Demi Moore hospitalized for 'exhaustion': Which star had the most unbelievable illness'?

Demi Moore has been looking dangerously thin lately, but we were still surprised to hear that she was hospitalized Monday night for "exhaustion" following a 911 call placed from her home.

SODAHEAD SLIDESHOW: Which star has had the most unbelievable "illness"? 

"Because of the stresses in her life right now, Demi has chosen to seek professional assistance to treat her exhaustion and improve her overall health. She looks forward to getting well and is grateful for the support of her family and friends," Moore's rep said in a statement.

We all know that in Hollywood speak, "exhaustion" is usually code for, well, something else -- and sources tell TMZ that Moore is being treated for substance abuse.

Moore has certainly had a rough few months -- she filed for divorce from husband Ashton Kutcher in November after six years of marriage amid infidelity rumors. And some celebs insist that they really were "exhausted" -- like Tracy Morgan, who was taken to the hospital after collapsing earlier this week.

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From Moore to Morgan to Lindsay Lohan, let us know: Which celeb had the most unbelievable "illness"?