ABC stole some "American Idol" thunder Wednesday night with explosive allegations from former contestant Corey Clark about an improper relationship with Judge Paula Abdul and her plea to keep quiet.

"FOX and 'AI' are a $900 million corporation," Corey said to those who claim he's lying. "I'd better be telling the truth because I don't have $900 million to fight against that."

So would Clark be willing to take a lie detector test? "I'll take one with her," he told our Tanika Ray.

And "Idol" Executive Producer Nigel Lithgow might just be interested in such a test. "These are serious allegations," he insisted. "But I will always remember who they come from and that is Corey Clark, the guy I kicked off 'American Idol' because he lied to us."

"Corey Clark's main objective is to get in there and make a relationship," said David Wallace, Clark's former manager. "Establish a real close kind of liking and then move on once you get what you want."

But Corey fired right back to those claims, insisting, "I was using her? I didn't step to her. She came and stepped to me like the whole game was brought to my doorstep."

FOX says they are already looking into Corey's allegations and Paula still isn't talking. But Corey had a message for the star. "I'd just say it's about you, but it's not about you," he said. "You don't have to come after me; I'm not coming after you. I'm just trying to set my record straight so I can handle my business."