Known primarily for her involvement in a 1987 scandal involving American televangelist Jim Bakker, she also appeared on such television shows as Married. . . with Children and Blossom and was photographed for Playboy magazine.
In 1987, Jim Bakker resigned as head of The PTL Club, and the news soon broke that Hahn was accusing Bakker of having sexually assaulted her seven years earlier. Bakker contested the charge, saying that the encounter, which occurred while Hahn was a secretary for his church, was consensual.
She appeared in three episodes of The WB's sitcom Unhappily Ever After.
During the 1980s, she was romantically involved with stand-up comedian Sam Kinison. For nearly twenty years, beginning in the early 1990s, she was the partner of television producer Ron Leavitt.
During the late 1980s and 1990s, she was a frequent guest on The Howard Stern Show.