Kid Rock is about to have a new kid in his family as the sometimes country singer's son is about to make him a first-time grandpa.

According to Us Weekly, Kid Rock's son, 21-year-old Bobby Ritchie Jr., is expecting his first child with his girlfriend.

According to the magazine, Bobby Ritchie and his girlfriend are about four months along and are they are expecting a baby girl.

Kid Rock's reps had no comment when asked about the baby. Kid Rock reportedly won custody of his son in 2000 and raised him primarily alone.