Roar: the song debuted at number 85 on the week-ending August 14, 2013 due to radio airplay. The following week, during its first week on sale, "Roar" sold 557,000 digital copies, earning Perry the highest first-week sales numbers of 2013 and also her biggest digital song sales week ever, breaking her previous record held by "Firework", which sold 509,000 digital copies for the week ending January 8, 2011. he song soared eighty-three positions to number two in its second week, kept from the top spot by only Robin Thicke's "Blurred Lines", while becoming Perry's twelfth top-ten hit single in the United States, and her ninth consecutive single to peak within the top three on the Hot 100.[39] After another week at number two, "Roar" reached number one for the chart dated September 4, 2013. CERTIFICATION: 8× Platinum in 2 Years
Shake It Off: "Shake It Off" debuted atop the US Billboard Hot 100 chart, becoming the 22nd song to do so. It produced first-week digital sales of 544,000 units for the chart issue dated September 6, 2014, the largest debut sales week for a single of 2014. The song remained at number one for the second week selling 355,000 copies. "Shake It Off" then dropped down to number two, beneath Meghan Trainor's "All About That Bass", where it stayed for eight consecutive weeks, before returning to number one on November 15, 2014, when 1989 was released and debuted at number one the same week. In total, "Shake It Off" spent four non-consecutive weeks at number one and 24 non-consecutive weeks in the top 10 of the Billboard Hot 100, thus becoming Swift's longest-running single in the top 10.
CERTIFICATION: 8× Platinum in 1 Year
