By Hayley Spencer
Updated Jan 16, 2015 @ 7:46 am
Tiffani Thiessen and Brady Smith
Credit: Angela Weiss/Getty Images

Tiffani Thiessen is the latest star to announce she's expecting a baby in 2015. The new addition will be the actress's second child with husband Brady Smith, as the pair are already proud parents to daughter, Harper Renn.

The White Collar actress confirmed the happy news on Instagram, captioning a cute family snap with the words: "We are excited to announce the news that we are expecting. Harper could not be more thrilled to have a sibling and a playmate."

The happy news couldn't come sooner, especially for Thiessen's 4-year-old daughter. The Saved by the Bell alumnus revealed on her new cooking show, Dinner at Tiffani's, of her little girl: "Every day she begs me to have a baby. Every morning she wakes up and says, ‘Is there a baby in your belly?’ She thinks it grows overnight while we’re sleeping. Then she looks at me and says, ‘You’re not growing a baby, Mommy!’"

Congrats to the happy family!