It took five Fourth of July (2011-2015) and six New Year's celebration (2011-2016) before Katy's modern classic - that is FIREWORK - crossed 7x Platinum in pure sales and was awarded as RIAA certified Diamond. Meanwhile, ROAR only took 2 years to cross 6x Platinum in pure sales and will be awarded as RIAA certified Diamond soon. While DARK HORSE is also a RIAA certified Diamond now and is 6x Platinum in pure sales.

Will Roar and/or Dark Horse overtakes Firework eventually? Discuss.