ABC News correspondent Bob Woodruff's interview with Andrew Young will air Jan. 29 on "20/20." Young was a longtime friend and aide to Edwards, the Democratic nominee for vice president in 2004.
Young will discuss his upcoming book, "The Politician," an account of Edwards' 2004 campaign and the Rielle Hunter scandal, the network said.
Hunter's video production firm worked for Edwards' political action committee before his second run for the White House, which ended in 2008. In an interview with Woodruff last year, Edwards admitted to an affair with Hunter but denied he had a child with her.
In October, The New York Times reported it had obtained a book proposal from Young. According to the newspaper, Young's proposal contended that he helped facilitate Edwards' affair with Hunter, and that Edwards had a child with her and worked with his campaign finance chairman to hide the secret.
Young hasn't spoken publicly since saying he was the father in 2007 and has repeatedly ignored requests for news interviews. A spokeswoman for Edwards declined comment Wednesday.
Young will follow his "20/20" interview with a Feb. 2 appearance on ABC's "Good Morning America" with new co-host George Stephanopoulos.
ABC is owned by The Walt Disney Co.
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