What is the biggest selling song of all time?

What is the biggest selling song of all time? According to Guinness World Records, Irving Berlin’s “White Christmas” (1942) as performed by Bing Crosby is the best-selling single worldwide, with estimated sales of over 50 million copies.

According to Guinness World Records, Irving Berlin’s “White Christmas” (1942) as performed by Bing Crosby is the best-selling single worldwide, with estimated sales of over 50 million copies.