Diamonds

"Diamonds" by Rihanna is featured on Just Dance 2015.

Classic
The dancer is a woman with short purple hair, a long sleeve turtleneck, a gold cage girdle belt that resembles a diamond, pink tights with large holes, and black stiletto ankle boots. At some points she changes black with most of her outfit changing to white and grey.

Seated Dance
Both dancers are hardly detailed, with only their silhouettes present. At some points, brightly lighted yellow arrows can be seen moving on their shadows. They resemble the Rich Girl Chair dancer in that neither of them have many visible features and the way they are black all over.

Classic
The background is black with white rising glitter resembling the titular diamonds. At some points a rainbow circular light and a shining white light in the distance shine about. The light is likely to have been caused by the diamonds' reflections of light. At some point during the chorus the background zooms out with the dancer, revealing more diamond covered floor and as the dancer zooms back in strings of diamonds appear in the background.

Seated Dance
The background is completely white with the exception of the two bright blocks - one orange and the other red - used as seats. A spotlight illuminates the walls and dancers at some points of the dance.

Classic
Gold Move 1: Make an arm circle going upward while lifting your left leg.

Gold Move 2: Reach your right arm to the northeast.

Gold Move 3: Make a circle the reversed way and make a diamond. It's the last move.

Seated Dance
One Gold Move has been revealed so far for the alternate:

Revealed Move: Bring your hands down in opposite directions: P1 to the left and P2 to the right.

Captions

 * Bright Circles

Trivia

 * This is the 7th song by Rihanna. The first was: S.O.S, the second was Pon de Replay, the 3rd was: Only Girl (In The World), the 4th was: Disturbia, the 5th was: Umbrella and the 6th was: Where Have You Been.
 * "Molly" is censored, as it is referring to drugs.
 * This is the second song having "molly" censored, We Can't Stop being first.


 * This song, along with several other songs on the same game, zooms outward.
 * The dancer majorly resembles Wild and Price Tag.
 * The shape of her outfit is very similar to Just Dance.
 * This is the second song to have an alternative involving a chair the first being Rich Girl.
 * This was the fourth alternative mode to be revealed for Just Dance 2015 after I Love It's Guard Dance, Happy's Sing Along and The Fox's Campfire Dance.
 * However, it is only the second alternative to actually have had its gameplay revealed.
 * In the seated dance, the female dancer is Céline Rotsen, a choreographer of many dances in Just Dance.
 * The seated dance is the closest that the dancer(s) has/have ever been to the screen without the zoom effect being used.
 * In the seated dance, the dancers are not really sitting, they just squatted down, and the effects were added in the gameplay.
 * This song has a diamond as representative icon.
 * You can get it by dancing to the Seated Dance version.
 * P2 of the Seated Dance looks like P1 from 99 Luftballons.
 * The background might've be inspired by the presentation that Rihanna had on The X Factor to resemble the columns of diamonds coming from the floor.