Jennifer Hudson’s ego seems to be super-sizing itself along with her fame: She just tried to back out of a big awards show until music-biz legend Clive Davis told her, in effect, “And I’m telling you – you are going.”

The Oscar-winning former “American Idol” contestant, according to Page Six, called the day before the Soul Train Awards show in Los Angeles and told them “she couldn’t make it,” says a source. But “Soul Train” impresario Don Cornelius wasn’t having any of her swanny behavior and called Davis, who told Hudson, “Get your ass out to L.A.” She obliged.

It’s just the latest too-big-for-her-Manolo-Blahniks moment for Hudson, who recently told Simon Cowell and “Idol” that their show was “a stepping stone,” which elicted a sharp reaction from Cowell. And she also dissed Burger King, where she worked as a teen, prompting them to offer her free Whoppers for life.