This song is Unity. Mainly pure music, The lyrics are as follows:

Unity-TheFatRat.

some day we'll all be free

some day we'll live as one family in sweet harmony

some day we'll all be free

some day

:

unity was released in 214 by the Fat Rat, and its songs were included in the singer's second album Unity.

The Fat Rat is a musician from Germany. He studied piano at an early age and began to compose his own music. According to his own account, his career was about 12 years. In recent years, it became popular on the Internet, but in the domestic network circle, it was his single Unity that caused a wave of enthusiasm.

most of his songs are electronic dance music. The software used is Ableton Live, and he uses his home as his studio to create music on his laptop. He mainly shares his music on Spotify, Soundcloud and Youtube, and most of the tracks are shared by himself for free. The Fat Rat has not released an album at present, because he thinks that if he wants to release it, he must produce an album that satisfies him, and said that this day will come.

reference: Unity (the Fat Rat works) _ Baidu encyclopedia