What is this song and who sings it ?!

It goes

and if I say save me save me
be the light of my life

and if I say save me save me
leave alight on in heavan

if you want the fruit to fall have to give the tree a shake
if you shake the tree too hard always gonna break

if I can reach the top of my tree Ill think of you and celebrate
I made such a big mistake when I was marys (something)Www@Enter-QA@Com

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