Birthday Song debuted at number 91 on the US Billboard Hot 100 on the week of August 11, 2012. The song fell off the chart the following week. It re-entered the chart at number 100 on the week of September 1, 2012. The song continued to climb the chart, until reached its peak position at number 47 on the week of November 10, 2012. The single ended up spending a total of 20 weeks on the chart. On November 25, 2014, the single was certified double platinum by the Recording Industry Association of America (RIAA) for sales of over two million digital copies in the United States.