The 21st century is the current century in the Anno Domini or Common Era, in accordance with the Gregorian calendar. It began on 1 January 2001, and will end on 31 December 2100. It is the first century of the 3rd millennium. From Wikipedia
Billboard cites Beyoncé's 25 years of influence, evolution, and impact as the basis for her top ranking over other major artists like Taylor Swift and Rihanna.
