Law sometimes can humble one regardless of his or her social status.
Former Nissan boss Carlos Ghosn was forced to say he will be “getting ready to tell the truth about what’s happening” at a news conference.
Mr Ghosn faces charges of financial misconduct.
Mr Ghosn, who was released on bail last month after nearly four months of detention in Japan, announced the 11 April event on a new verified Twitter account.
The former car industry titan, who led a global alliance of Nissan, Renault, and Mitsubishi, is accused of failing to report $82m in Nissan pay as well as transferring personal investment losses to the company and steering $14.7m of funds to a Saudi businessman.
Mr Ghosn, who was initially arrested in November, has dismissed the charges as “meritless” and said he was the victim of a boardroom coup.
He was released on £6.8m bail last month, emerging from a detention centre in Tokyo wearing a face mask.
Mr Ghosn has not yet spoken publicly about the case.
His Twitter account, set up on Monday, has posted just twice – the same message in Japanese and in English. It has already acquired thousands of followers.
It also carries an image of a grey-haired Mr Ghosn – in contrast to pre-arrest images of the business mogul with jet black hair.
Under the terms of his bail he is not allowed to use the internet, though the tweet may have been made on his behalf as is common with other high-profile figures.
Reuters news agency reported that representatives for Mr Ghosn could not be reached for comment about the tweet.