Sources tells us pageant peeps are concerned that Heidi just can't pull it off. We're told "she's lip-syncing and can't remember the lyrics" (to her own song!!!), "looks like a trainwreck," and "she can't dance."
But she's got Jesus on her side, so we're sure it will turn out just fine.
UPDATE: From the mouth of Spencer -- "The allegations by certain production staffers saying that Heidi is not going to perform are 100% false. She will perform live tonight and she is an exceptional dancer."
UPDATE 2: A source at NBC, which is airing the pageant, says Heidi isn't as bad as producers were secretly hoping she'd be. We shall see ...