05/09/2011 12:38 pm ET | Updated Jul 09, 2011

Bear Blu Jarecki: Alicia Silverstone's New Son

Alicia Silverstone is a mom!

The actress and author, 34, welcomed her first child with husband Christopher Jarecki on Thursday, May 5, her rep tells PEOPLE exclusively.

Son Bear Blu Jarecki weighed in at 7 lbs., 15 oz.

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