'Elementary' star Lucy Liu is a first-time mom to Rockwell

LOS ANGELES — There's a new guy in "Elementary" star Lucy Liu's life and he won't be hard to detect — a bouncing baby boy.

The actress took to Instagram and Twitter on Thursday to reveal that the 46-year-old is a new mom to Rockwell Lloyd Liu, "brought into the world via gestational carrier." He is her first child and a publicist said both "are healthy and happy."

Liu plays Dr. Joan Watson opposite Jonny Lee Miller's Sherlock Holmes in the CBS crime drama. Her other on-screen credits include "Ally McBeal" and the films "Charlie's Angels" and "Kill Bill."