*On the heels of his latest single “F*** You” receiving a Grammy nomination for record of the year, Cee-Lo Green has announced that he has become a grandfather – at age 35.

The singer revealed that his 20-year-old daughter Sierra recently gave birth to a baby boy.

“I’m a grandfather. I’m 35. She had a son so I have a grandson,” he told talk show host Chelsea Handler.

The Grammy nominee also spoke of Sierra’s previous appearance on MTV’s “My Super Sweet 16,” admitting that the program makers had to bend the rules for her edition.

“She was actually turning 15 on that show,” he confessed. “MTV took a liking to her and they allowed her to be an exception for this show.”

Watch below.