How can I convince my parents to let me see Taylor Swift concert?

Hi! :D I asked my dad if i can go to a Taylor Swift concert, he said
"no, cause I can't afford two concerts and I already took the day off
of work" (were going to see Bruno Mars too) and I'm like "Well can you
put the day back on" and He said "no"

So my birthday is in October, and shes going to have a concert at New
York on November 22. So for a late birthday present maybe I can pay
for my ticket ($74.00) and a bit for my dad's ticket ($74.00) Do you
think that will work?-since I'm paying for some of it and it's my
Birthday present???
and if you don't think that will work, do you have any more ideas? :)

and I will be 13 in November, but right now I'm 12. :)