SCAVENGER HUNT

There are 18 QR code clues hidden throughout the campsite. Each clue will give you a letter. Once you have all 18, unscramble the letters to spell out a 4 word phrase.

THE CLUE:

"What 2007 Rihanna song, featuring Jay-Z, topped the singles charts in the U.S. and U.K.? (Take the first letter of your answer)"