Gaff made "Last Night!" available on July 14, 2020. Last Night! is 2 minutes and 57 seconds long and may contain bad words that may be unsuitable for children. Because this song is the only song in Last Night! and no other songs are present in the album, we classify this track as a single. In terms of popularity, Last Night! is currently below average in popularity. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

Last Night! テンポ

We consider the tempo marking of Last Night! by Gaff to be Andante (at a walking pace) because the track has a tempo of 108 テンポ, a half-time of 54テンポ, and a double-time of 216 テンポ. Based on that, the speed of the song's tempo is moderate. The time signature for this track is 4/4.

Last Night! キー

This song is in the music key of E Major. This also means that this song has a camelot key of 12B. So, the perfect camelot match for 12B would be either 12B or 1A. While, 1B can give you a low energy boost. For moderate energy boost, you would use 9B and a high energy boost can either be 2B or 7B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 12A or 11B will give you a low energy drop, 3B would be a moderate one, and 10B or 5B would be a high energy drop. Lastly, 9A allows you to change the mood.