Kristin Chenoweth on what to expect at Tonys: "Kookoo bananas"

Kristin Chenoweth is being very tightlipped about her upcoming assignment to co-host the Tony Awards. Literally.

The Tony-winning star of "On the Twentieth Century" was on vocal rest Wednesday and was only able to communicate by writing on a white board. But, as indefatigable as ever, she attended a meet-and-greet with fellow nominees, laughing despite her frustration.

"This is my own version of hell," the Emmy- and Tony Award-winning star of "Wicked" wrote. "I can't believe I'm sick."

Chenoweth will co-host the annual award ceremony with "The Good Wife" star Alan Cumming from Radio City Music Hall on June 7.

"An American in Paris" and "Fun Home" topped this year's Tony Awards nominees with 12 nods each, followed by "Something Rotten!" with 10 and "The King and I" with nine.

"I want to kill it" with Alan, she wrote. "Broadway all the way!" Asked what we might expect, she wrote "kookoo bananas."