If you ask people to name Hollywood's most glamorous  actress there's no doubt Marilyn Monroe will top the list. More than 50 years after her tragic early death, a record-breaking sale of her most recognizable outfit proves she's one of history's most iconic celebrities.

The dress, which Monroe wore while singing "Happy Birthday" to President John F. Kennedy in 1962, sold at auction for $4.8 million dollars, the most anyone has ever paid for a dress - not bad, considering it originally cost just $12,000.

And it's no wonder why: the stunning, designer dress made Monroe's performance (and her last public appearance) a career-defining moment.

Monroe only wore the dress once, at a Democratic party fundraiser in New York's Madison Square Garden.  It was just 10 days before the president's birthday, and she serenaded him with her sultry, now-famous version of "Happy Birthday."

The nude-colored dress was a created by designer Jean Louis, and featured 2,500 hand-stitched rhinestones.

Monroe wore nothing under the dress, and it was so tight that she had to be sewn into it, which explains the gasps from the audience when she revealed it.

The dress was bought by Ripley's Believe It Or Not, who will show it off at their museums around the world.

In case you need any more proof of Monroe's celebrity, this sale actually beat her own previous record.

The famous white dress she wore in The Seven Year Itch sold for $4.6 million.

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