Hello how may I help you? i need to know a world record Sure what world record can I help you with? i need to know the best selling record ever The best selling record in the US of all time was Michael Jackson's Thriller cool. what was the worst selling record ever? The Bee Gees - One was the worst selling record ever in the United States good to know. how much did it make? That record only sold 16,000 units in the country wow. thanks No problem!