Tori Spelling Has a Baby Girl

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Tori Spelling and her husband Dean McDermott welcomed a baby daughter on Monday morning -- the couple's third child. 

They chose to announce the news via Twitter: "Our family's so happy 2 announce that 10/10/11 R baby girl Hattie Margaret McDermott was born at 7:08 am! Xoxo."

In a separate tweet, Dean couldn't contain his excitement, exclaiming: "She's Gorgeous!!" Tori, 38, and Dean, 44, have been married since 2006 and already have two children together, Liam, 4, and Stella, 3.

The couple plans to introduce their new baby on the premiere of the sixth season of their reality show Tori & Dean: Home Sweet Hollywood, airing November 29 at 10 p.m. on Oxygen.