The dancer is a man with black shoulder-length hair and a mustache. He wears black glasses, a multicolored track jacket (purple, black, pink, and mint green), black pants, a yellow glove, and yellow high top sneakers.
P1 is man with black hair. He is wearing a pair of cyan sunglasses, a green and pink shirt with blue flamingos, and a cyan watch.
P2 is a man with black curly hair tied in a ponytail and a beard. He is wearing a pair of red sunglasses, a black watch, a golden necklace, a purple tank top, and a cyan green blazer jacket.
The background first takes place in a karaoke bar with two grey female statues holding white orbs. This purple and blue room contains a large screen displaying pink flowing clouds and a woman based off the statues dancing. In the chorus, the big screen behind the man zooms in and going into a bright cloudy scenery with white Grecian-style monuments and the statue woman dancing in colors. Two panels color over neath the scenery, one yellow and one blue and pink. The background pans over in nighttime, the clouds turning blue and the girls playing keytars. A rainbow often appears in the background. Before the screen zooms back out, the background pans over in nighttime, the clouds turning blue and the girls playing keytars.
The dancer are sitting in car akin to Teacher's Car routine. It starts off as the text "WHAT is love" on a black screen until it cuts to the two dancers in an urban neighborhood. As the song goes into the first verse, and through the rest of the song, they are seen going through a city at night with various neon lights on the buildings. It appears as if the dancers are actually driving.
There are 2 Gold Moves in the Classic routine, both of which are the same: Both Gold Moves: Spread your arms out in a big circle. The second Gold Move is the final move of the routine.
Both Gold Moves
Both Gold Moves in-game
There are 4 Gold Moves in the Car Version routine: Gold Moves 1 and 4: Throw both of your hands to the air as if saying "Why?!!" Gold Move 4 is the final move of the routine. Gold Move 2: P1: Pretend to drive a car. P2: Move your arms like the car is going to crash. Gold Move 3: Same as Gold Move 2, but swap Gold Moves, so that P1 does P2's 2nd Gold Move and P2 does P1's 2nd Gold Move.
Gold Moves 1 and 4
Gold Move 2
Gold Move 3
Gold Moves 1 and 4 in-game
Gold Moves 2 and 3 in-game
There is 1 Gold Move for P1 and 2 Gold Moves for P2 in the Mashup: Gold Move (P1)/Gold Move 1 (P2): Curve your back slightly while pushing your arms behind your back. (American Boy) Gold Move 2 (P2): Put your hands up in the air and lunge slightly forward. (The Master Blaster)
The footwear the backup dancers have on resemble the ones worn by Cheerleader (P2).
The backup dancers are also wearing glasses that is the same as the coach from You Spin Me Round (Like a Record). The colorful screen with the inverted backup dancer in the background is also related to that routine.
It is revealed in the Behind The Scenes video for the song that the background dancers were shot with only one dancer. 
After playing the song, when the Autodance comes up, it says "Ubisoft Cover" as the artist instead of "Ultraclub 90".
This was fixed in the final version. However, when viewing an autodance for this song, the autodance plays the original version of the song performed by Haddaway instead of the cover by Ultraclub 90.
A similar problem occurred with the preview of Footloose, where the original version by Kenny Loggins was erroneously used instead of the Top Culture cover.
This was finally fixed when the same preview was re-uploaded onto Just Dance's official YouTube channel with the Top Culture cover.
This is the first song to be covered by Ultraclub 90 in the series.
When viewing the song in the menu, the title under the menu icon reads "What Is Love?" with a question mark. However, the title next to the album coach reads "What Is Love" (without the question mark).
In the Classic routine, in fact, a male announcer out in nowhere calls out, "Calling up from the stage #17 for our next song, 'What is love,' 19th stereo." before the song starts.
"Number 17" could be in reference to the song being featured on Just Dance 2017.
Unlike in other Duet Mashups, the players switch places at times, making some of them the opposite of their respective original player. (For example: Shut Up and Dance’s P1 acts as P2, and vice versa.)
The head bobbing movement that is used in the Car Version is a reference to a skit on television's long-running Saturday Night Live called "The Roxbury Guys" (the basis for A Night at the Roxbury), where Chris Kattan's and Will Ferrell's characters bob their heads in unison to the song throughout the duration of each sketch.
In the Mashup, the dancers do not have a fading effect like other Mashups. This is the second Mashup in the series to do this, after Maneater’s.
This song is the second song to feature a Car Version, after Teacher.
However, since this song is sitting down, this is the fifth song that requires sitting down. The first one being the Chair version of Rich Girl, the Seated Dance version of Diamonds, Under the Sea, and the Car Version of Teacher, followed by the Bicycle version of Side To Side and the Subway version of Chantaje.
On Just Dance Now, the song ends as soon as the dancer can be seen getting ready to leave the screen, while on the console version, it ends when he just crouches.
In the Mashup, Gold Move 2 is only counted for P2 although only P1's pictogram is outlined in gold.
The Car Version's menu icon was slightly different, showing some more light effects on the city in the background.
The Alternate for What Is Love was released on April 27th, 2017 on Just Dance Now, along with those for Sorry and Cheap Thrills, and they could be regularly earned for 100 coins (although Alternates usually require a VIP pass to be played). All of these routines were removed after a few hours.
In the Just Dance Now notification for the song's official release, Haddaway was erroneously credited as the artist instead of Ultraclub 90.
A Community Remix contest was held for this song, though no Community Remix was ever released.