The dancer is a woman with long black hair tied in a ponytail. She wears a neon purple caped shirt, dark purple leggings, blue heels, and golden jewelry. Her outfit turns red during the chorus.
The routine takes place in what seems to be a galactic field of stars. Pink lights circle and lock around followed closely by orange lights spinning around. During the chorus, a huge white light appears in the center of the background. There are also more orange lights, and the pink lights disappear. The lights follow the dancer's movements.
There is 1 Gold Move in this routine:
Gold Move: Make a circle with your arms.
Gold Move in-game
There are 2 Gold Moves in the Mashup, both of which are the same:
Both Gold Moves: Clap twice with your hands in front of you. (Maps)
Lights has a Mashup with the theme of Pink Hair, which can be unlocked with 1000 Mojo Coins (or 20 Mojo Coins for the Wii). It features dancers with pink hair. It is only available for the Wii and eighth-generation consoles.
The game uses the radio edit, in which, the first verse and chorus uses the same music as the second verse and second and third choruses.
In addition, the track is shortened at the bridge and ending.
The background tracks the movements of the song and the dancer, much like in Blame. Véronique Halbrey, the creative director of Just Dance, refers to this by calling the dancer "a kind of galactic warrior who can just change a universe thanks to her dance moves".