Ne-Yo is already suffering sleepless nights as he prepares for fatherhood - his pregnant girlfriend often sends him out in the dead of night to search for ice cream.

The So Sick star is expecting his first child with Monyetta Shaw in January (11) and he is fast learning to deal with her mood swings and food cravings as her pregnancy continues.

And Ne-Yo admits he frequently has to get out of bed in the early hours of the morning when Shaw suddenly decides she wants a sweet treat.

He tells the New York Daily News, "I'm learning that pregnant women like to cry a lot... and yell for no reason whatsoever. You just have to let that happen. If it's ice cream at three o'clock in the morning, you have to get up and go get her the ice cream."