Each season, an idol group is given an infant or toddler to take care of, allowing them to experience parenthood to an extent. In the first season, Girls' Generation became 'mothers' to a nine-month-old boy. This was also the case for the boy band, Shinee, in the second season, though the child is four years old. In the third season, the girl group T-ara had to take care of three toddlers.
During the show's first three seasons, each group had to take care of the babies on their own, with some male celebrities acting as guest 'dads' in the first season. In the fourth season, Sistar became mothers to a baby boy, with Super Junior's Leeteuk as the father.
While all of the show's seasons have different concepts, they are still similar in ways such as the 'parents' being given missions and activities to do for the day with the children.
The fourth season started on September 2, 2011. It portrays the four Sistar members (Hyolyn, Bora, Soyou and Dasom) acting as mothers and Super Junior's Leeteuk as a father taking care of a baby named Kim Kyumin (Hangul: 김규민). The season finished broadcasting on November 18, 2011.
This season is similar to that of Leeteuk's Find Mom project. It shows the process of finding the favorite mom amongst the four Sistar members. Unlike the past seasons, it was the baby who was leading the shows, not the parents.
