Only 90 songs have debuted at No. 1 in the history of the Billboard Hot 100 — here they all are

• Only 90 songs have debuted atop the Billboard Hot 100 since the chart was launched in 1958.

• "Drop Dead" by Olivia Rodrigo is the most recent song to achieve this feat.

• Drake has the most entries with nine, followed closely by Taylor Swift with eight.

The Billboard Hot 100 is widely considered the definitive all-genre singles chart in the US.

Although it was officially launched in 1958, Billboard began using modern airplay and sales data in 1991, allowing for more time-sensitive calculations and accurate rankings.

Well over 1,000 songs have reached the coveted No. 1 spot, but it's far more difficult for a song to debut in the top position; it typically means a much-promoted single has met high expectations, or at least that an artist is supported and beloved by a legion of fans.

Keep reading for a complete list of instant chart-toppers throughout history.