Firework

Firework
Firework by Katy Perry is one of the 42 tracks on Just Dance Mashup. This is the first Katy Perry track to be revealed in the game, following Birthday and This Is How We Do

Dancer(s)
There are 4 dancers in this routine and they are:
 * 1) Firework [Main Dancer]
 * 2) E.T.
 * 3) Twist and Shake It
 * 4) Barbra Streisand

Background
The background is placed in a living room were a party event is going on. As a different verse is sung, the room will start filling up with furniture and party decorations, and at the chorus, disco lights start appearing, and at the final verse, balloons can be seen around the dancer(s).

Gold Moves
There are 4 gold moves in this routine, one is done by the Firework dancer where she raises her arms upwards, one is done by the E.T. dancer where she puts her arms in a square-like position, and two are done by the Barbra Streisand dancer where she raises her arms and then pull them down in a circular manner.

Trivia

 * This is by far the only routine to feature solo dancers and duet dancers at the same time.
 * If you are Happy (P1) or Jazzy (P2) then you will automatically be playing as P1 when the duet dancers appear, and if you are Crazy (P3) or Funky (P4) then you will automatically be playing as P2 when the duet dancers appear.
 * Originally, this routine was supposed to be Last Friday Night (TGIF) but for some unknown reason, it was changed to Firework instead.
 * For some reason, the Firework dancer appears on the DLC promotional image that was on Twitter, this maybe hinting that Firework will get an alternate routine that will be DLC.