Cee-Lo Becomes a Grandfather at 35

R&B singer Cee-Lo has become a grandfather at the age of 35. The "Forget You" hitmaker's 20-year-old step-daughter Sierra recently gave birth to a baby boy and the star is thrilled with the new addition to his family. He tells U.S. talk show host Chelsea Handler, "I'm a grandfather. I'm 35. She had a son so I have a grandson." Sierra is Green's step-daughter from his marriage to Christina