Cover songs are songs of an artist/band covered by an individual in his/her own way and style. Improvising some elements of the music and presenting it in our own way.It is interesting to see how cover songs sometimes gain more popularity than the original ones. Covering songs and putting them online enables people present their skills and methods to the world. Nowdays, covering songs has become a fashion.

Best Covers are the ones that have originality, richness of music and their own style of mending the song. While extreme and unsuitable improvisation that distrub the theme and content of the song are considered unpleasant and are largely criticized. However good covers make the song more lively and even help sustain old songs and pass them to upcoming generations.
Here is an amazing cover of Ac/Dc’s all time hit Back in Black using Japanese instruments.