Who sold more records Elvis or beatles worldwide?

According to Guinness World Records, The Beatles have sold more records worldwide than any other artist or group. It is estimated that they have sold over 183 million certified units in the United States alone, and over 250 million worldwide. Elvis Presley is second on the list with over 178 million certified units sold in the US, and an estimated 600 million worldwide. However, it is important to note that these numbers are constantly being updated and revised, so the actual figures may vary.