Newsday said Friday while appearing on CBS' "Late Show with David Letterman," Abdul joked around about her approach to judging a ninth season of the Fox TV competition.
"I never said (I wasn't returning). I just said that I'm not sure," Abdul told Letterman Thursday night.
"It's called, um, 'negotiating,'" she added.
Letterman offered Abdul a bit of advice by detailing a decision he made earlier in his career, which included hosting duties on NBC's "Late Night with David Letterman."
"One time, I tried that, I was coming up to the end of a contract, and I said, 'I don't know, maybe I won't come back,' and they said, 'Fine because we've got another guy ready to go,'" Letterman told Abdul.
The ninth season of "Idol" is not scheduled to begin until 2010.