Rachael Leigh Cook and Daniel Gillies

Perception star Rachael Leigh Cook and her husband, The Vampire Diaries and OriginalsDaniel Gillies, have welcomed a daughter.

"It's a girl," Gillies tweeted Sunday. "The tiny new empress of my everything. she's immaculate. We're delirious."

Which new shows won you over? Vote now!

No further details were released.

This is the first child for the couple, who have been married since 2004.