20. Big Sean f/ Nicki Minaj "Dance (A$$)" (2011)
Who better than Nicki Minaj—one of the leading female presences in hip-hop right now—to really show us how to twerk? In one of the most GIF-worthy videos from 2012, Big Sean's "Dance (A$$)" employs a hypnotizing melody along with a heavy beat to make a song, essentially, about asses (as if the opening lyrics—"ASS ASS ASS ASS ASS ASS ASS ASS ASS"—didn't clue you in). Nicki's verse is another list entirely, but as for her video spot? Nicki takes center stage shaking and bumping her butt throughout the clip—a perfectly addictive and compelling accompaniment to the music, a twerk enthusiast's version of Barishnakov floating his way through Adolphe Adam's Giselle (or something). Big Sean sounds so confident that it makes the "Hammer Time" phrase that's littered throughout the song tolerable. It's arrogant, it's strong, and the dance-heavy bass just pounds. Big Sean will later go on to famously discuss the delicate matter of ass-quakes, sure, but really, his greatest contribution to shaking it starts right here.