What's the Big Frigin'

DIFFERENCE!

5/18/2014 12:05 AM PDT BY TMZ STAFF
0513_difference_RitaOra_launch
We've sprinkled in some very subtle differences for you to spot -- after you've soaked in the Rita Ora's stunning appearance... see if you've still got the energy to find 'em! 

**HINT -- There are THREE differences in the above photographs!**