Marilyn Monroe’s “Happy Birthday, Mr. President” dress was sold for $4.8 million — According to Guinness World Records, the most expensive dress ever sold at an auction, is Marilyn Monroe’s “Happy Birthday” dress. In 2016, the dress was bought for $4,810,000 at Julien’s Auctions in Los Angeles, California, by Ripley’s Believe It or Not, which is owned by Canadian billionaire Jim Pattison. Marilyn…