Sour Girl made "Boom!" available on October 16, 2021. Boom! is 2 minutes and 33 seconds long and may contain bad words that may be unsuitable for children. Because this song is the only song in Boom! and no other songs are present in the album, we classify this track as a single. Based on our statistics, Boom!'s popularity is unknown right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

Boom! テンポ

The tempo marking of Boom! by Sour Girl is Allegro (fast, quick, and bright), since this song has a tempo of 138 テンポ. With that information, we can conclude that the song has a fast tempo. This song can go great with walking. The time signature for this track is 4/4.

Boom! キー

This song has a musical key of D Major. This also means that this song has a camelot key of 10B. So, the perfect camelot match for 10B would be either 10B or 11A. While, 11B can give you a low energy boost. For moderate energy boost, you would use 7B and a high energy boost can either be 12B or 5B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 10A or 9B will give you a low energy drop, 1B would be a moderate one, and 8B or 3B would be a high energy drop. Lastly, 7A allows you to change the mood.