"We don't have a great relationship. She'll be the first to tell you that," Jack said on the "Disrespectfully" podcast.

A ree Osbourne vowed to look after her mother-in-law, Sharon Osbourne, in the wake of Ozzy Osbourne’s death. The wife of Jack Osbourne posted a poignant tribute to Instagram a few days after the Black Sabbath legend’s life was remembered with a funeral procession and memorial service at his Buckinghamshire estate.