WHOKILLEDXIX made "Killjoy" available on February 9, 2020. Killjoy is 2 minutes and 11 seconds long and may contain bad words that may be unsuitable for children. Because this song is the only song in Killjoy and no other songs are present in the album, we classify this track as a single. In terms of popularity, Killjoy is currently average in popularity. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

Killjoy テンポ

We consider the tempo marking of Killjoy by WHOKILLEDXIX to be Andante (at a walking pace) because the track has a tempo of 97 テンポ, a half-time of 48テンポ, and a double-time of 194 テンポ. Based on that, the speed of the song's tempo is slow. The time signature for this track is 4/4.

Killjoy キー

The music key of this track is D♭ Major. This also means that this song has a camelot key of 3B. So, the perfect camelot match for 3B would be either 3B or 4A. While, 4B can give you a low energy boost. For moderate energy boost, you would use 12B and a high energy boost can either be 5B or 10B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 3A or 2B will give you a low energy drop, 6B would be a moderate one, and 1B or 8B would be a high energy drop. Lastly, 12A allows you to change the mood.