Published by Billboard magazine, the data are compiled by Nielsen SoundScan based collectively on each single's weekly physical sales and airplay.
Although nine singles reached number one in fifty-two issues of the magazine in the calendar year, two songs began their peak position in 2001 and are thus excluded.
"Ain't It Funny" by Jennifer Lopez, in its remix version with Ja Rule, peaked at number one for six weeks.
[8] "Lose Yourself" is also the longest-running Oscar-winning number-one song since singer-actor Bing Crosby's "White Christmas" had 14 weeks on top in the 1940s.
[4] "A Moment Like This" is noted for its fifty-two-to-one leap in 2002, breaking the 38-year-old record set by The Beatles' "Can't Buy Me Love", which jumped from number twenty-seven to one.