The dancer is a man with dark purple hair. He has a black and purple shirt with red and orange stripes on, as well as a pair of black pants, a pair of purple-and-teal shoes, and an orange key chain. He has a purple outline.
Black walls that change to purple and move around. Two red crystals pump out of the ground and break whenever the singer sings "Pump it!". The dancer flies through blue lines and gold broken glass during the start and the bridge.
In the remake, the walls now change color when Fergie's part is sung.
There are 3 Gold Moves in the Classic routine:
Gold Move 1: Throw your arms forward with both of your arms. Gold Move 2: Point to your right with both of your hands. Gold Move 3: Move your right arm in a semi-circle with your left arm down. This is the final move of the routine.
A lot is censored from this song. Words that are censored are n****s, s**t, a**, joint, and damn when it's constantly said. If repetitions are included, this song is currently the one with the most use of censorship in the entire game series (12 uses in total).
In several of the trailers for Just Dance 3, this dancer is dancing by the logo. This is the second Black Eyed Peas song to dance by the logo. The first is the song rumoured to have been Let's Get It Started.
In the trailer that showcases Just Create, it's danced to by Harry Shum Jr., known for playing Mike Chang on Glee.
The caption "Stir It Up" was initially named just as "Stir".
On the Wii and PS3 version, the pink and purple squares appear before the Xbox 360 version.
On the PAL cover of the game, it has a different color scheme.
Pump It’s Just Dance Now files show an unfinished pictogram which is only a light blue spiral arrow.
In Just Dance Wii 2, the effort rating is raised to 3+. It's the only song in the game where its effort rating has been altered.
Pump It’s Mashup is the only one in Just Dance 3 with a tertiary color (i.e. blue-violet) in its background.
It is the only English song to have a 3+ rating for Effort on Just Dance Wii 2.
Pump It’s Just Dance Now files show that three moves are explicitly named pumpit_fuck.msm, pumpit_fucktoleft.msm, pumpitfucktoright.msm.
Sometimes, a weird glitch happens on the Wii version of Just Dance 3: everything will freeze for a few seconds and then the routine will restart, but it will be off-beat for the remainder of the routine.
This is one of the seven songs that appear twice or more in a row in a Mashup.
The dancer resembles Boomsday, from a routine that is featured as a DLC for the same game. Both routines were performed by Mehdi Kerkouche.