The Insider.com

UPDATE: A source close to the couple tells TheInsider.com that Nick suffered from dehydration, and not kidney failure as Mariah previously announced. He's doing well now and should be home by tonight.

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It was a rough night for Mariah Carey and husband Nick Cannon, who is recovering from mild kidney failure, announced early this morning by Carey via Twitter.

Mariah took to the web around 2:45am Wednesday to ask her fans for support in the wake of her husband's ailment, posting the above picture of the two together in Nick's hospital bed. "Please pray for Nick," she wrote, "he's fighting to recover from a mild kidney failure. #mybraveman"

The couple was vacationing in Aspen when Nick fell ill. On her website, Mariah details the extent of her husband's sudden malady:

"This is us in the hospital - role reversal; Last year it was me attached to the machines (after having dembabies) and Nick was there with me through it, and now here we are.

We're trying to be as festive as possible under the circumstances but please keep Nick in your thoughts because this is very painful. They tried to kick me out of the hospital but here I am pon de bed with Mr. C.

We're doing OK but we're "straaaaaanded in Aspen". #DramaticDivaPlace (I know, we could be in a lot worse places) but the truth is as long as we're together, we're OK. I'm not trying to make light out of the situation because it's a serious moment that's very tough on all of us so please keep us and our family in your prayers. LYM."