NU'EST made "Hello" available on February 13, 2013. With this song being around four minutes long, at 3:30, 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. There are a total of 5 in the song's album "THE SECOND MINI ALBUM Hello". In this album, this song's track order is #1. In terms of popularity, Hello is currently below average in popularity. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

Hello テンポ

With Hello by NU'EST having a テンポ of 96 with a half-time of 48 テンポ and a double-time of 192 テンポ, we would consider this track to have a Andante (at a walking pace) tempo marking. Because of this, we believe that the song has an overall slow tempo. The time signature for this track is 4/4.

Hello キー

This song has a musical key of B Minor. Or for those who are familiar with the camelot wheel, this song has a camelot key of 10A. So, the perfect camelot match for 10A would be either 10A or 9B. While, a low energy boost can consist of either 10B or 11A. For moderate energy boost, you would use 7A and a high energy boost can either be 12A or 5A. However, if you are looking for a low energy drop, finding a song with a camelot key of 9A would be a great choice. Where 1A would give you a moderate drop, and 8A or 3A would be a high energy drop. Lastly, 1B allows you to change the mood.