Beyoncé has been named the greatest pop star of the 21st century by Billboard, with her impact on the music industry and culture highlighted. The singer's ability to create iconic moments and her influence on other artists were key factors in securing the top spot. With a record-breaking 99 Grammy nominations and numerous chart-topping hits, Beyoncé's legacy as a pop superstar is firmly established. Other artists like Taylor Swift, Rihanna, and Drake also made the list of the top pop stars of the 21st century according to Billboard.