Lauren Graham, who is best known as hot TV mom Lorelei Gilmore from the "Gilmore Girls," will be returning to TV on an NBC midseason series.

Graham, who most recently starred on Broadway in Guys & Dolls, will be replacing Maura Tierney on NBC's "Parenthood," TVGuide.com is reporting.

Tierney left the series when she was diagnosed with breast cancer.

From the executive producers of the box-office hit 'Parenthood' -- Ron Howard and Brian Grazer, and writer/executive producer Jason Katims -- the series is a contemporary re-imagining of the film. The cast includes Peter Krause, Craig T. Nelson, Dax Shepard, Bonnie Bedelia, Monica Potter, Erika Christensen and Sarah Ramos as the colorful and imperfect Braverman family, now grown up and parents themselves.