Billboard publishes annual lists of songs based on chart performance over the course of a year based on
Nielsen Broadcast Data Systems and
SoundScan information. For 2011, the list of the top 100
Billboard Hot 100Year-End songs was published on December 9, calculated with data from December 4, 2010 to November 26, 2011. At the number one position was
Adele's "
Rolling in the Deep", which stayed atop the Hot 100 for seven consecutive weeks, and in the top thirty for most of the year.