Interpreting a song by a singer or by a wedding singer or any event singer requires a certain style of your own. It might be copied but a twist here and there makes it different. There are songs that are effective through simplicity and some needs a little imagination. Singing is not just carrying a tune or shouting it thinking it is the best way like the karaoke singers do. It hurts the ears, sad to say but most do this way. 

Singing is expressing your soul and the good it comes out is like sharing the gift of beauty. Music is so beautiful and needs to be shared and it it a grave sin from the thoughts of passionate musicians listening to a ruined music piece.

Musicians here in Manila, Philippines are aware of the gift (most of them)  and that is one reason why Filipinos are looked up to when it comes to the performing arts - world class Filipino Artists are found here.