This is a very good question and one I endeavor to answer and I also aim to provide a reason for this and some insight into how it can be accomplished however you apply it in Singing, Performance or Art in General so LISTEN UP.
This is a big question and therefore be broken down into manageable parts.
Firstly ART this can be anything from Singing to painting what I wounder is the actual definition?
What is CHANGE?
“make or become different”
Change is impacting society around you sharing an idea or a philosophy and have it become contagious to cultures all around the world. Personally change to me is about changing even if it is just one perception of the individuals around me an extending that, I think no matter what it is that you do whatever your expression is it can create this.
The WORLD? You might say well this is impossible! Think about the world in this way the World is a body once an infection takes hold and multiplies it becomes stronger and overpowers the body making the defenses and oppositions in the body weak. Ideas are like this whatever it is that you are trying to express to the World whatever message you are desperate to share can create change, if you believe in it strong enough there is no way that it can not influence the world around you. You know why? Because ideas are contagious as the great Sherlock Holmes said himself to paraphrase:
“Once an idea takes hold in there it is too strong to eradicate”
And he is right an idea is something that will be passed from generation to generation I mean look at the idea that Blue is for boys and Pink is for girls and in most of western society we still hold to this principle although we have long forgotten why it is so or what the origin of the idea was in the first place.
So you want to change the World with whatever art it is that you do then don’t just share an idea but let it become infectious let it be a voluntary thing where they believe in the idea so much that that they believe it originated from them and belongs to them.