The event will be dedicated to health problems and attended by heads of leading Wall Street companies.
Interestingly, the former head of the state repeatedly criticized bankers and heads of major financial institutions, blaming them for the global financial crisis.
In particular, in 2009 he called Wall Street bankers "fat cats" and said he had other reasons to run for presidency than to help a bunch of Wall Street bankers.
Forbes wrote that since 2005 Barack and Michelle Obama have earned more than $20.5 million, with only $3.1 million coming from the president's salary.
The Obama family earned about $15.6 million for the publication of the books "Dreams from My Father," "The Audacity of Hope" and "Of thee I sing: a letter to my daughters."
For the publication of the memoirs, the ex-president and his wife will be paid at least $65 million.
