UNDATED (AP) — Former “American Idol” Kris Allen is going to be a dad again. He posted a photo of his two-year-old son, Oliver, on Instagram wearing a “Big Brother” shirt. Allen confirmed in a Twitter chat on Saturday his wife is due in June. Allen plans to put out a new record in the coming year, and he will make an appearance on “American Idol” in its final season. “American Idol” begins Wednesday.