The ABC television network is keeping a public relations lid on its expose' of "American Idol" in an apparent bid to boost ratings.

The network's "Primetime" show, set for a Wednesday evening broadcast right after Fox's "American Idol," will reportedly discuss allegations judge Paula Abdul coached contestant Corey Clark in the hit show's second season, Washington Post reported Tuesday.

ABC declined to discuss the contents of its "Primetime" broadcast, entitled "Fallen Idol," a strategy expected to hike viewership by about 15 percent, analysts said.

Abdul has declined to comment on the rumors and her lawyer reportedly has written to ABC warning of possible legal action if the broadcast runs.

To get Clark's cooperation, ABC has agreed to air a portion of his new single during the newscast, a source said.