Grimes also revealed what made her think Musk was “f**king crazy” right off the bat.
The Canadian singer was pushed to confirm the news after her newborn was heard crying during a recent interview with Vanity Fair.
The Tesla CEO revealed his and Grimes' work schedules contributed to their split.
The Canadian singer recently raised eyebrows when she revealed she had chosen to name her son X Æ A-12.
The singer's mother, Sandy Garossino, sent the angry tweet after the Tesla CEO tweeted about "the red pill".
The two went back and forth on Twitter over a mistake in the description of little X Æ A-12 Musk's moniker.
The Tesla CEO and Canadian singer announced the arrival of their baby this week.
The Tesla co-founder already has five children with his former partner.