The dancer is a woman with a black shiny leather dress, with a garter belt that connects it to her shiny black boots. The back of the dress has a large countess collar. She also wears a flowing golden evening gown that is open in front, with the hems of the sleeves, and the skirt flowing freely. A hot pink dress hoop "pushes" the gown out, making it look more like a 16th-century ballroom dress. She has a gold choker scarf and has blondish puffy hair that is curled at the end. She wears a hot pink glove and a black visor on her face.
The dancer transforms into a completely different outfit. She wears a shiny brown long sleeve crop-top that exposes the midriff, and black cuffs at the end. She also wears a black collar. As for the shorts, they are shiny and brown too, with black cuffs on the hips as well. She wears burgundy ankle length high heel boots, and a similar looking brown glove. Her hair does not appear curled at the ends anymore, and the blonde hair is slightly paler. She wears a black butterfly-shaped visor on her face.
The coach is a woman with long black hair. Her outfit is inspired by the official music video. She has a white face paint, with smudged blue eye-shadow and orange, smudged lipstick. She also wears black ankle-length boots. She wears a bodysuit with flowing cuffs over the hands, and black spandex shorts and a black strapless bra are visible underneath. There is also a noticeable, fiery, static-like outline around the dancer as well.
The routine takes place in what appears to be an insane asylum. During the first verses of the song, she appears in a long slender hall with screens with people trying to get out on the sides. Lights light up the floor and make various triangular formations as she dances. The people in the screens on the sides try to push out, but cannot, due to the unknown material. As the chorus nears, backup dancers appear two men wearing only pink spandex pants and with a strange hairstyle, and two women wearing a pink one-piece, with long brown hair. They dance during the chorus too, and also during the chorus, the wall itself is another giant screen in which once again a person is trying to get out.
The routine takes place upon the same stage as the On-Stage routines, with various lights and an audience.
There are 3 Gold Moves in this routine:
All Gold Moves: Bring your right hand down in a curve while hopping and put your left arm down.
All Gold Moves
All Gold Moves in-game
There are 3 Gold Moves in the Alternate routine:
Gold Moves 1 and 3: Spread your arms out from your chest so that they are outstretched. Gold Move 2: Raise your arms with a slight bend, as if you are flexing. Also, keep the rest of your body entirely straight.
Both modes of Applause appear in Party Master Modes. Here are the captions attributed to their dance moves:
Black Swan 
Applause is the second song by Lady Gaga in the series.
There are two lyric errors:
The line "I’ll turn the lights out" is misinterpreted as "Turn the lights on".
The line "Now art’sin pop culture, in me" is misinterpreted as "Now artand pop culture in me".
If one bought Just Dance 2014 from GameStop and bought the ARTPOP album (following the instructions on receipt), they would have gotten an additional remix of Applause, the Bent Collective Club Mix.
The NATO phonetic alphabet translates LimaGolf (the song's codename) to LG, the initials of Lady Gaga, the track's performer.
This codename was probably used so the files wouldn't be confused with the actual applause sound effect.
The dancer spells "ARTPOP" out with her hands at the end of the song just like Lady Gaga in the music video.
The Alternate routine uses the background of the other On-Stage Mode routines, despite lacking many of the features characteristic of an On-Stage Mode routine, e.g. not having its lyrics in the middle of the screen and the routine being solo.
A very short video of the Alternate routine was leaked on November 21, 2013.
An unused album coach can be found in the DLC files.