Its data, published by Billboard magazine and compiled by Nielsen SoundScan, is based collectively on each single's weekly physical and digital sales, as well as airplay.
[2][failed verification] In 2012, six acts achieved their first US number-one single, either as a lead artist or a featured guest: Fun, Janelle Monáe, Gotye, Kimbra, Carly Rae Jepsen and Taylor Swift.
[A] Gotye's "Somebody That I Used to Know", featuring Kimbra, became the year's biggest-selling single, topping the Billboard Year-End Hot 100.
[3] Carly Rae Jepsen's "Call Me Maybe" and Maroon 5's "One More Night" tied for the longest-running number-one single of the year, both spending nine consecutive weeks atop the chart.
[9][10][11] "Diamonds" is Rihanna's twelfth Hot 100 number-one single, tying her with Madonna and The Supremes as the artists with the fifth-most number ones in the chart's history.