It's A Girl For Tori Spelling

Tori Spelling once played notorious virgin Donna Martin on 90210, but now she's anything but. Spelling, 38, and husband Dean McDermott, 44, are welcoming their third child — a girl named Hattie. The new baby joins brother Liam, 4, and big sis Stella, 3.

The happy couple announced the birth on Twitter. "Our family's so happy 2 announce tht 10/10/11 R baby girl Hattie Margaret McDermott was born at 7:08am!" they tweeted on Tuesday. The birth had been expected to take place a week later, but Hattie was ready to come out.

All the behind-the-scenes action will be yours when the pair's reality show, Tori & Dean: Home Sweet Hollywood, premieres November 29 on Oxygen.