It is a formalized process in which the participants are broken up into pairs and rotate partners every 3-8 minutes (depending on the event).
Each pair sits down and gets to know one another, or “date”.
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This is Melania's first and only marriage and Trump has been married twice before.
Another famous entrepreneur Rupert Murdoch married Wendy Deng in 1999 when he was 68 and she was 30. Hefner has been married twice previously and he has been in several long-term relationships.
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Speed dating first evolved over a decade ago, but it has become much more popular in recent years, especially among baby boomers and seniors.
Perhaps the increasing need for companionship is to blame, or maybe the adrenalin-pumping nature of the event makes it so attractive.
According to the site, Dina and her new beau met at a fundraising event last year.
In June, the duo attended Hampton Sun’s 10th anniversary event in the Hamptons together.