Mark Wilkerson & Melissa Joan Hart: Expecting! Again!

Following the lead of Tameka Foster, actress Melissa Joan Hart has announced she is pregnant.

Except in the case of the former Sabrina the Teenage Witch star, not everyone hates her! And it's going to be her second child!

Hart and her husband, rocker Mark Wilkerson, who married in 2003, are already the proud parents of a son, Mason, who is nearly 2. Melissa is four months into her current pregnancy.

"I love the faces Mason makes. I could watch him forever," Melissa Joan Hart, 31, told People shortly after his birth.

But it looks like celebrity baby No. 2 will be arriving sooner than planned.

In a recent interview talking about her plans, Hart said, "I hope to have a sibling for Mason sometime around his 3rd birthday, but first, I want him to learn how to snowboard - I feel like that will be a marker of his self control!"

Well, alright then.

Added Hart: "I adore my baby boy and can't imagine not having him around. He makes everything okay, if I've had a bad day or a good one."

Congratulations to the happy couple.

This is better news than the last time we heard from M.J. Hart, who bashed Chris Daughtry for not crediting Mark Wilkerson exclusively for the song he allegedly wrote, "It's Not Over," which became a big hit for the American Idol finalist.