Searching for song with chorus going to come back the artist is female and this words are in chorus?

The song you're looking for is "I'm Gonna Come Back" by The Wreckers (Michelle Branch and Jessica Harp). Here's the chorus:

I'm gonna come back

It won't be long 'til I return

You can say what you want

But you can't make me stay away

'Cause I'm gonna come back