Actress Melissa Joan Hart and hubby Mark Wilkerson welcomed the birth of their third child this week, a baby boy they have named Tucker. The Clarissa Explains It All actress took to Twitter this morning to announce the joyous occasion. “Baby boy Tucker has finally arrived! We waited all year to meet this lil man & we could not be more excited & relieved that he is in our arms!” This is the third little boy for Hart who currently stars on the hit show Melissa & Joey. She and Wilkerson have a 4 year old named Braydon and a 6 year old named Mason. The sex of the healthy 8lb baby was a surprise for heart and her musician husband who had decided that they wanted it to be a surprise. The actress announced her pregnancy back in April but said “We don’t want to know. We found out both other times, but this one we want to be a surprise.”