Macaulay Culkin (40) is no longer the little boy he played in the Christmas movie Home Alone. Since last week, the actor is now 40 years old and even a father, ‘Esquire’ reports Monday.

Culkin and his girlfriend, Brenda Song (33), became parents to a son last Monday. Little Dakota was born in Los Angeles and is named after Culkin’s sister, who passed away in 2008. In an interview with the magazine, the couple said they were ‘over the moon.