J.Lo & Iggy Cheek to Cheek ... A Heavyweight Battle

8/28/2014 12:02 AM PDT

Jennifer Lopez and Iggy Azalea teamed up for a remix ... which is totally irrelevant when compared to the amazing photo that has ass aficionados stacking the vintage model against the new one.  

So, who would you rather -- dream about? 'Cause realistically, ya got no shot.