Verified answer

I'm in Mexico, on the "Born This Way Ball Tour"!!!

This is me, in Ciudad de Mexico at the "Born This Way Ball Tour"

Este/Esta soy yo, en la Ciudad de Mexico, en el "Born This Way Ball" Tour

No has escrito correctamente tu pregunta, vamos a ver:

lo que quieres tal vez decir es que:

... estabas en la ciudad de Mexico en la tour llamada " Born this Way"?

Si es eso, entonces el pasado sería:

I was in Mexico City on a Born This Way tour"

im am in mexico city in the tour born this way

Se escribe : me in the mexico city in the born this...

Y se pronuncia mi in de mcsico ciri in da born diss weiy noo tur

I am in Mexico City/DF. in the Born This Way Ball Tour

Si está en pasado, usálo bien en castellano.

I was in Mexico City/DF. in the Born This Way Ball Tour.

ai wozin mexico cire n da bern des wey bol tsuar