Taylor Swift has been named the No. 1 artist of the 21st century by Billboard, based on her album and song performances on the Billboard charts. Despite making her debut in 2006, Swift has achieved 14 No. 1 albums and 12 No. 1 songs, making her the top artist of the century. She has also been named Billboard's No. 1 artist of the year four times and was the first artist to have all top 10 songs on the Hot 100 in a single week. Other top artists of the century include Drake, Rihanna, and Eminem.
Source: https://www.kptv.com/2025/01/09/billboard-names-taylor-swift-top-artist-21st-century