Colton Dixon arrives on the red carpet for the White House Correspondents' Association Dinner. (JONATHAN ERNST/REUTERS)

He was the invited guest of Christian Broadcasting Network

At the Capitol File White House Correspondents’ Dinner after-party, Dixon lapped up the little attention he received at the Newseum’s VIP lounge around midnight, reported The Post’s Katherine Boyle.

“The guy with the Mohawk is famous, I think,” said a middle-aged man near the bar. Even the photographer couldn’t remember his name. “He’s from ‘American Idol’... That’s all I know.”

Dixon, wide-eyed and chipper, seemed oblivious to his relative anonymity.