Bubbling Under Hot 100 Singles

The Bubbling Under Hot 100 Singles is a chart released weekly by Billboard in the United States. It is comprised of 25 positions that represent songs that are making progress to chart on the main singles chart, the Billboard Hot 100. Many times, singles halt their progress at this chart, and never debut on the Hot 100. For example, a Kelly Clarkson song stayed at #101 and never went any higher. Also, more noticeable examples are the Pet Shop Boys's "Can you forgive her?", "Go West", "Before" and "Somewhere" which halted their progress in #109, #106, #107 and #125 respectively, to never appear again in the chart.

The Bubbling Under Hot 100 Singles chart can also be seen as a 25 position addendum to the Hot 100, but the chart only represents the 25 songs below position #100 which have not yet appeared on the Hot 100. If a song were to be ranked at #99 but then declined the following week to a position that is comparable to #105, it would not be eligible for the Bubbling Under Hot 100 Singles chart because it already appeared on the Hot 100 chart.