Girlfriend

"Girlfriend" by Avril Lavigne is featured on Just Dan​ce 2, Just Dance Wii 2, Just Dance: Greatest Hits and Just Dance Now.

Dancers
The dancers are two females who appear to have clashing personalities.

P1
P1 is a girl who has magenta hair in pigtails. She wears a purple singlet, purple leggings, a pink belt and a pair of pink shoes.

P2
P2 is a girl who has middle-short orange hair with a green circlet. She wears a blue and white checkered school sweater, a short blue skirt and a pair of lime green shoes.

Background
The background is composed of two parts with checkered patterns: at the left it's purple-red and black with skulls-and-bones, and at the right it's sky blue and black with hearts. There are also two speakers and wires on the floor. They are supposed to correspond to the personalities of the two dancers - punk and good-girl.

Gold Moves
The routine has a total of 3 Gold Moves:

Gold Move 1 & 2: Raise your arms while jumping.

Gold Move 3: Cross both of your arms. This is the final move of the routine.

Trivia

 * Damn, Motherf**king, and Hell are censored.
 * In Just Dance 2, the line "What the hell were you thinking?" first appears as "What the ... were you thinking?", but then it reappears as "What were you thinking?". Both times it sounds like "What type were you thinking?".
 * This is the first song by Avril Lavigne to be featured in the series. It is succeeded by Rock n Roll on Just Dance 2014 as a DLC.
 * The dancers were originally going to have different color schemes. P1's beta color scheme can be seen in a photo on one of the official pages for Just Dance. Also, the same beta element can be seen in the menu icon for Just Dance 2.
 * However though, this icon was fixed in Just Dance Greatest Hits and the icon now shows P2 with her final color scheme.
 * P2 resembles the girl with glasses from the song's music video.
 * Girlfriend holds the record for the duet with the lowest pictogram count in its pictos sprite (only 13, even fewer than U Can't Touch This and That's The Way (I Like It), which have 14 pictograms each).