A representative for pop singer Alanis Morissette has confirmed the actress/songwriter/singer gave birth to her first son on Christmas Day.Morissette and her husband, rapper Mario "Souleye" Treadway named the chiled Ever Imre Morissette-Treadway, and all three are healthy and happy, the rep said. Morissette and Treadway were married in May and announced the pregnancy in August.