Billboard published its first popular albums chart, at the time known as Best-Selling Popular Record Albums, in 1945. The chart was first published in the magazine dated March 24 and included ten positions, "based on reports received from more than 200 dealers" throughout the United States. In the 40 weeks that followed, eight albums by five different artists reached the top.
The first number-one album on the chart was the King Cole Trio's self-titled debut released by Capitol. It topped the charts for three weeks until it was replaced by the soundtrack of Song of Norway, an operetta, written by Robert Wright and George Forrest. The soundtrack reached number one for one more week in May.