Task: Question Answering
Input (English): Passage: In the US, "Diamonds" debuted at number 16 on the Billboard Hot 100 and sold 133,000 copies in its first week. In its fourth week, it climbed to number eight on the chart and became Rihanna's twenty-third top-ten single. For the week ending December 1, 2012, the song became Rihanna's twelfth number-one on the chart, which ended the nine-week reign of Maroon 5's "One More Night". With the feat, Rihanna tied Madonna and Supremes as the artists with the fifth-most number ones in the chart's history. Rihanna also passed Mariah Carey as the female artist to mark 12 number-one songs the fastest on the chart by achieving the feat in six years and seven months, which bested Carey's stretch of seven years, one month, and two weeks. "Diamonds" charted for a second consecutive week atop the Hot 100, while her album Unapologetic topped the Billboard 200. As a result, Rihanna became only the second artist of 2012 to top both the Billboard singles and albums charts simultaneously; the first to do so was English singer Adele.On the Radio Songs chart, "Diamonds" debuted at number 28. In its fourth week, it climbed to number ten, becoming Rihanna's 19th top ten, breaking a tie with Lil Wayne for the second-best sum in the list's 22-year history; only Mariah Carey (23) has more. For the issue dated December 15, the song topped the chart, becoming Rihanna's tenth number one and placing second for female artists with the most chart toppers, only behind Mariah Carey (11). On the Pop Songs chart, "Diamonds" debuted at number 29, extending Rihanna's lead as the artist with the most appearances on the chart. On October 11, 2012, Billboard unveiled new methodology for the Hot R&B/Hip-Hop Songs chart, newly factoring digital download sales and streaming data into the 50-position rankings, along with existing radio airplay data monitored by Nielsen BDS. Due to this, "Diamonds" saw a huge leap from number 66 to number one, marking Rihanna's second single as a lead artist to top the chart; it topped the chart for fourteen consecutive weeks. "Diamonds" topped the Dance Club Songs chart, becoming Rihanna's nineteenth number one, tying her with Janet Jackson for the second-most number ones in the chart's 36-year history. Only Madonna has more (43). "Diamonds" was certified sextuple platinum by the Recording Industry Association of America (RIAA).
In Canada, the song debuted at number nine on the Canadian Hot 100 for the issue dated October 13, 2012. The song peaked at number one on the issue dated November 24, 2012, becoming Rihanna's sixth single to reach number one on the chart. It remained atop of it for four consecutive weeks. It was certified platinum by Music Canada denoting sales of over 80,000 copies. 
Question: Whose song made it to number 1 on the Billboard Top 100?
Output (English): Rihanna.