Selma Blair Gives Birth to Baby Boy

Selma Blair Baby - P 2011
John Shearer/Getty Images for Coach

SANTA MONICA, CA - APRIL 20:  Actress Selma Blair arrives at an Evening of Cocktails and Shopping to Benefit the Children's Defense Fund hosted by Coach at Bad Robot on April 20, 2011 in Santa Monica, California.

The actress welcomed her first son with boyfriend Jason Bleick.

Selma Blair became a mom on Monday, welcoming son Arthur Saint Bleick into the world.

A rep for the actress tells People that the little one weighed in at 7 lbs., 12 oz. Arthur is the first child for Blair and her fashion designer boyfriend, Jason Bleick.

The couple, who met while collaborating on Bleick’s EVER fashion line, announced their pregnancy in January, but opted to keep the baby’s sex under wraps.

Blair earned a 2011 Grammy nomination for her work on the audio book, Anne Frank: The Diary of a Young Girl: The Definitive Edition, in the Best Spoken Word Album for Children category.