Problem

Not to be confused with Problem (The Monster Remix) from Just Dance Kids 2014.

"Problem" by Ariana Grande ft. Iggy Azalea & Big Sean is featured on Just Dance 2015.

Appearance of the Dancer
The coach has long pink hair in a ponytail. She wears a dark purple golf visor, light blue headband, round, dark purple hoop earring on her left ear, a light blue jacket, a purple shirt, pink-and-purple checkered skirt, and white and purple sneakers.

Background
Colorful and brightly-colored shapes, circles, triangles and lines appear like in I Kissed a Girl. At some points colored lips appear. Before the chorus colorful glass shards appear. After Iggy's part, a colorful aura appears before the dancer. In the chorus flashing boxes and lines appear and disappear on screen to the beat.

Gold Moves
There are 2 Gold Moves in this routine:

Gold Move 1. Lift your leg up and cross your arms as you hit them toward the ground (similar to the gold move of Just Dance 's sweat version)

Gold Move 2. Put your right hand on your hip and your left hand on your head before swiftly moving your torso in a circle.

Mashup
Problem has an unlockable Mashup with the theme "Lover's Duet" and features romantic couples.

Dancers
(No repeats)
 * Me And My Broken Heart (JD2015) [GM2]
 * Candy (JD2014)
 * A-Punk (JD2)
 * Limbo (JD2014)
 * Turn Up the Love (JD2014)
 * Just A Gigolo (JD2014) [GM1]

Appearances in Mashups
Problem is featured in the following Mashups:
 * Love Me Again (Ex-Girlfriends)
 * Walk This Way (Ladies Only)

Trivia

 * There was a confirmation photo of this song with the Built For This dancer on it. This confused a lot of people because that dancer made people believe it was for this song.
 * This is the first Iggy Azalea song in the series, the second being Black Widow in the same game.
 * This is the second Ariana Grande song in the series, the first being The Way in Just Dance 2014, the third being Bang Bang and the fourth being Break Free as a free DLC, both also in Just Dance 2015.
 * This the second song that Big Sean is featured. His first featured song is Wild with Jessie J.
 * In Just Dance 2015, Big Sean is credited as the "whisperer" in the Problem chorus. But in ITunes, only Ariana Grande and Iggy Azalea are the credited artists of the song.
 * This is also the first Ariana Grande song to be a Solo mode, along with Break Free.
 * The dancer looks similar to the dancer in Just Dance and I Kissed a Girl.
 * This is the first song on the Just Dance 2015 menu in the order.
 * Aurélie Sériné is the real dancer from this routine. This was proven on justdanceworld.com
 * The choreography is inspired by Ariana Grande in the music video and concerts.
 * If players have sensitive eyesight, they should be careful watching this because the background can cause eye damage or seizures in people with epilepsy due to the bright colors and the flashing triangles and boxes.
 * The flashy circles (like yellow, bright green and etc) are also too bright and actually glow too much and that also causes epileptic seizures. In this case, the backgrounds are strobe lights.
 * Some elements of the background, like the flashing lights, follow the beat of the song.
 * This character is on one of the eight Just Dance gift tags.
 * Her glove was initially neon green, but in the final release it's blue-purple.
 * If you watch the Gamescom gameplay, you can notice that the arrows and the circle that represents the glove are red, even though her glove was already changed from neon green to purple.
 * In the mashup's icon, the male dancer of Me And My Broken Heart's pants are blue instead of brown. In the actual mashup, they are still brown.