Step 1 : Introduction to the question "Which female artist holds the record for the most No. 1 singles on the Billboard Hot 100?"
...Mariah Carey holds the record for the most Billboard Hot 100 No. 1 singles by a solo female artist, with 19 chart-toppers. Emerging in 1990 with the success of “Vision of Love,” Carey quickly became one of the most dominant vocalists and songwriters in pop music history. Her No. 1 hits span multiple decades and genres, including classics such as “Hero,” “Fantasy,” “We Belong Together,” and the holiday favorite “All I Want for Christmas Is You.” Carey’s 19 No. 1 singles place her second overall only to The Beatles, who hold the all-time record with 20.
