Hi

Well, as Rihanna is going to be on tour, you should probably look up her schedule for her venues. Then check out which venues accept fanmail. You can email them and ask if they do or you can check the list on fanmail.biz called "venues that do/don't accept fan mail".
if u find one, start making your request.
you will need:
a photo for her to sign
a letter to request the auto
SASE (self addresses stamped envelope)
write to rihanna and ask her for the auto for your gf
then put that in the envelope with the SASE (put your address on it)
and put the picture in the envelope.
make sure you send it to the venue so that it arrives 3-4 days before the concert.
on your big envelope, write on the front:
PLEASE HOLD FOR RIHANNA UNTIL (DAY OF CONCERT)
of course, there are no guarantees, but good luck anyways!
let me know if you have any other questions!
