Girls' Generation-TTS made "Only U" available on October 22, 2014. With this song being around four minutes long, at 3:37, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. The track order of this song in Girls' Generation-TTS's "Holler" album is number 5 out of 6. The popularity of Only U is currently below average in popularity right now. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

Only U テンポ

We consider the tempo marking of Only U by Girls' Generation-TTS to be Vivace (lively and fast) because the track has a tempo of 172 テンポ, a half-time of 86テンポ, and a double-time of 344 テンポ. Based on that, the speed of the song's tempo is fast. The time signature for this track is 4/4.

Only U キー

This song is in the music key of F Major. This also means that this song has a camelot key of 7B. So, the perfect camelot match for 7B would be either 7B or 8A. While, 8B can give you a low energy boost. For moderate energy boost, you would use 4B and a high energy boost can either be 9B or 2B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 7A or 6B will give you a low energy drop, 10B would be a moderate one, and 5B or 12B would be a high energy drop. Lastly, 4A allows you to change the mood.