Noisy underground British artist 'Firexit' has two songs with references to Katie, one called "K H" (Katie's initials) and a song called "The reason I can't have her" featuring samples of Katie singing 'On my own' from a Dawson's Creek (1998) episode.
Holmes's couch-jumping-worthy engagement ring is a Edwardian-style oval- shaped diamond ring of about 5 carats in a pave setting.
Participated in and finished the New York Marathon in 2007.
Her mother, Kathleen Ann (Craft), is a homemaker and a philanthropist. Her father, Martin Joseph Holmes, Sr. is a lawyer, an attorney specializing in divorces.
Graduated from Notre Dame Academy, an all-girls Roman Catholic school in Toledo, Ohio.