Elon Musk's estranged daughter Vivian admits she doesn't "actually know" how many siblings she has and has only seen her brother X, whom Musk shares with singer Grimes, once when he was younger.

Elon Musk went on a transphobic rant Thursday on X, baselessly claiming “hormone injections cause extreme emotional volatility” just hours after his estranged daughter, Vivian Wilson, who is trans, called him a “pathetic man-child.

Elon Musk’s estranged transgender daughter has said she does not know how many siblings she has. Vivian Jenna Wilson, Mr Musk’s eldest child, said she is unaware of how many brothers and sisters she has and found out about her father’s latest child from the news.