Song from the trailer...

Honestly having a Holy Grail type quest here and no one seems to help

At the end of the trailer: https://www.youtube.com/watch?v=b-m8bBHvV8M

it goes something like "I would do anything to be a little girl, but I ain't gonna show them…." or something.

It sounds so early millennium and has sparked the nostalgia bug in me. Please does anyone know what song this is?