Karen Ann Hanson is a woman whom Jerry dated in “The Chaperone”; she is Miss Rhode Island.
Jerry meets her at a Yankee game and manages to ask her on a date. It appears the date might be in jeopardy when the chaperone, who is required to accompany Karen, cannot make it. Luckily, Jerry is able to find a last-second chaperone: Kramer. Kramer is a big fan of the Miss America Pageant as he watched it every year since he was six years old. Kramer mostly ruins the date for Jerry by asking Karen various questions in the same manner that Miss America contestants are asked; by the end of the date Kramer was hired to be her new personal coach.
In Atlantic City, where Jerry, George, Kramer, and Karen all happen to be at the same time, Karen reveals she has trained doves, which she intends to use in the talent portion of the pageant. In the middle of the night, Jerry and George cannot sleep because they hear the incessant squawking of some kind of birds, so Jerry decides to pour a bucket of water out the balcony window, which seems to shut them up. The next day, it is revealed that Jerry had in fact unwittingly killed her doves, as they were the birds who kept Jerry and George up. Kramer discovers this and accuses Jerry of doing it purposely so that Karen would lose.
In the end, Kramer convinces Karen to sing for the special talent portion of the pageant. Despite not having sung a day in her life she performs, with horrible results. Presumably, Karen did not win the Miss America title.