that depends on if you have enough time to commit to tanning every other day for the next week...or even every day..(as long as you don't go pink you can go every day) otherwise, go for the spray tan, but go the afternoon before soit has time to settle and you will have at least one shower before the event..which will tone it down a little...if you go for the spray on tan...just make sure you have no dry skin anywhere or you will have a blotchy tan... me i would go for the spray ive done it before and i wasn't orange!
don't be afraid of the spray tan....its completely easy...you get to watch a video before you go in.....just take the little cap off before you wipe the blocking lotion off your hands...otherwise orange hands!