The dress Marilyn Monroe wore when she sang, 'Happy Birthday,' to President John F. Kennedy, on May 19th, 1962, at New York's Madison Square Garden. The dress, designed by Jean Louis, was made Mr. President the late Marilyn Monroe. With those teasing words, actor Peter Lawford introduced Marilyn Monroe at President John F. Kennedy's birthday celebration on May 19, 1962, at Madison Square Let's talk about the iconic dress Marilyn Monroe wore to wish President Kennedy a Happy Birthday. On May 19, 1962, Marilyn stunned in a super sheer, skin coloured Bob Mackie Jean Louis gown, 100th birthday, Heritage Auctions is debuting a treasure trove of Marilyn Monroe's personal artifacts. The auction features a collection of the actress's belongings ranging from clothing and accessories to original artwork Marilyn Monroe Jfk Birthday Dress Close Up Crystals