The routine involves a dance crew of four young men, resembling superheroes. All of them wear dark blue catsuits with matching shoes.
P1’s suit is mostly pink. He is seen wearing dark blue glasses.
P2’s suit is mostly lime green. He is wearing a dark blue headband with a lime green streak.
P3’s suit is mostly cyan. He is also seen wearing a dark blue glasses.
P4’s suit is mostly red. He is also wearing a dark blue headband with a red streak.
The background is a bright cloudy sky with the moon exposed. At "oh oh oh," it quickly transitions to a dark blue background with colorful rays of light flying about. As the gold moves occur, a row of pink, lime green, cyan and red panels appear behind the matching dancers. Afterwards, the original cloudy background moves upwards into a darker scene.
Best Song Ever background - Just Dance 2015
There are 4 Gold Moves for each coach in this routine, all of which are the same. All of them are Wave Gold Moves which occur from P1 to P4. Gold Moves 1 and 3 are done one after another:
P1: Look to the left and keep your body forward with your arms behind you.
P2: Bend and cross your right leg (left for Gold Move 2) and extend your arms down.
P3: Throw your arms in the air and lift your right leg.
P4: Strike your right fist in the air, keeping your left arm by your side.
When P1 performs his Gold Move 3, the same pictogram is reused despite the other coaches moving their right arms in a circle only once rather than three times.
In Just Dance 2015, in the pictogram for Gold Move 2, the golden outline around the pictograms merges with the one around the wave symbols; in the pictogram for Gold Move 4, instead, the pictograms and the wave emblems have their own golden outline.
In one pictogram in Just Dance 2015, the glove emblems are erroneously placed behind the right hands.
In Just Dance 2015, even though Gold Moves 2 and 4 are Wave Gold Moves, the effect only appears once.
The issue was fixed after its release in Just Dance Unlimited.
P4 appears in the background of Fire as part of the character selection screen.
In Just Dance Unlimited, in the pictograms for Gold Moves 1 and 3 for P2, P3 and P4, the golden glow causes the other pictograms to change their colors.
A placeholder menu banner can be found in the Just Dance Unlimited servers.
P4’s hand can be seen on the thumbnail for Black Widow’s Just Dance Unlimited trailer.
Best Song Ever (Mashup) is the only Sweat Mashup in the entirety of Just Dance 2015.