Less than a year after the birth of daughter Madilyn Grace, Ne-Yo is a father again. The singer-songwriter and Monyetta Shaw welcomed a son on Sunday, Oct. 9, his rep confirms to PEOPLE. Baby boy Mason Evan weighed in at 6 lbs., 10 oz. “Sal-u twit fam. If you are truly fam you’ll help me welcome the heir to my throne,” the proud papa Tweeted. “[Fatherhood] has been a ride, but I’m loving every minute of it.”CONGRATS!