2018-01-21: Beatles and Led Zeppelin, who sold more?

https://www.express.co.uk/entertainment/music/907791/Led-Zeppelin-50th-anniversary-reunion-Robert-Plant-Jimmy-Page

Quoting:
"Page added: “[2018] will be the 50th year, so there’s all manner of surprises coming out.”

Led Zeppelin was formed in 1968 and is the sixth best-selling music artist of all time, second as a band only to The Beatles, with an estimated 300 million records sold."