The most famous birthday celebration for President John F. Kennedy took place on May 19, 1962, at Madison Square Garden. Held as a Democratic Party fundraiser, the star-studded gala drew about 15,000 attendees. The highlight was Marilyn Monroe’s sultry rendition of “Happy Birthday,” followed by performances from Ella Fitzgerald, Maria Callas, and Peter Lawford. Kennedy was also presented with a multi-tiered cake bearing the presidential seal.
Marilyn Monroe,The event is most remembered for Marilyn Monroe's sultry rendition of "Happy Birthday, Mr. President", wearing a dazzling, skintight dress. After Monroe's performance, President Kennedy humorously remarked, "I can now retire from politics after having had 'Happy Birthday' sung to me in such a sweet, wholesome way".