Genitempo was born as Maria Celeste Tucker in Galveston, Texas and was married to art department staff member Joey Genitempo. She has appeared in several television commercials and stage plays and is working as a web designer. Genitempo has also appeared in several television series, including The X-Show (1999), Days of Our Lives (1999, with Renée Jones), V.I.P. (2002, episode Saving Private Irons), and 24.