Natasha Bedingfield is a first-time mother.
Bedingfield shared a photo of herself from her hospital bed holding a Starbucks coffee cup that read "Mum."
"Omg! Guess what just happened at the very end of this year! The happiest new Year ever!" she captioned the picture.
The "Unwritten" singer had announced her pregnancy in October. She said in a post Saturday that her "favorite memory" of the year was learning she would have a son.
Bedingfield and Robinson married in Malibu, Calif., in March 2009.
The singer, who last released the album Strip Me in December 2010, said in an interview with The Sun in October that she was "so excited" to become a mom.
"I'm so excited to embrace this huge life change. And Matt is super supportive."