PRIME MUSIC (songs): Adele—“Hello”; Walk the Moon—“Shut up and Dance”; Mark Ronson featuring Bruno Mars—“Uptown Funk”
In addition to providing insight to their best-sellers, Amazon also called 2015 a "record breaker" for the company. Amazon reportedly saw three million people join its Prime service during the third week of December, as Holiday procrastinators took advantage of Prime's free two-day shipping. It's no coincidence that Christmas Eve was the biggest day for Prime deliveries.
Amazon also said that 70 percent of Holiday season orders were made on a mobile device.
Alex Hider is a writer for the E.W. Scripps National Desk. Follow him on Twitter @alexhider.