Chart Beat

This Week in Billboard Chart History: In 2008, Katy Perry Was 'Hot' (N Cold) Atop the Pop Songs Chart

Plus, remembering feats by Taylor Swift, Alabama & Rihanna.

Your weekly recap celebrating significant milestones from more than seven decades of Billboard chart history.

Nov. 26, 2011
Taylor Swift took over atop the Hot Country Songs chart with "Sparks Fly," her fifth of seven No. 1s on the survey.

Nov. 27, 1993
Alabama roared to the top of Hot Country Songs with "Reckless," its 32nd No. 1 on the ranking. In 2011, the iconic act expanded its record for the most leaders among groups, as Brad Paisley's tribute track "Old Alabama," featuring Alabama, became the group's 33rd No. 1.

Nov. 28, 2009
Let's hear it for New York! JAY-Z and Alicia Keys began a five-week command of the Billboard Hot 100 with "Empire State of Mind."  

Nov. 29, 2008
Katy Perry notched her first Pop Songs No. 1 with "Hot N Cold." Now with 11 total toppers, she and Rihanna boast the most leaders in the airplay chart's 26-year archives.

Nov. 30, 1991
A landmark date in Billboard Hot 100 history: the chart adopted Nielsen Music data, allowing for a more accurate methodology than ever before. The first No. 1 on the revised ranking? P.M. Dawn's "Set Adrift on Memory Bliss" (which samples Spandau Ballet's 1983 top-five ballad "True").

Dec. 1, 2012
A shining star: Rihanna collected her 12th Billboard Hot 100 No. 1, of 14 to date, with "Diamonds." The song ushered in her first No. 1 album on the Billboard 200, Unapologetic.

Dec. 2, 1995
Mariah Carey and Boyz II Men began what's now tied for the longest reign in the history of the Billboard Hot 100, as "One Sweet Day" spent its first of 16 weeks (or, 112 sweet days) atop the tally. Luis Fonsi and Daddy Yankee's "Despacito," featuring Justin Bieber, tied the mark with 16 weeks at No. 1 in 2017.