Monroe's dress from JFK birthday sells for US$4.8m at auction (VIDEO) Malay Mail The Story Behind Marilyn Monroe's Iconic 'Happy Birthday JFK' Dress 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 See KLG imitate Marilyn Monroe singing Happy Birthday to JFK In 1962, Marilyn Monroe wore a sheer gown to sing to John F. Kennedy at Madison Square Garden. The garment featured over 2,500 crystals and fit so tightly that the actress had This Day In Music May 19 1962 Marilyn Monroe sings "Happy Birthday, Mr. President" to JFK before 15,000 attendees, accompanied by jazz pianist Hank Jones, at Madison Square Garden, NYC