Jennifer Lopez

No Ifs, Ands, Or ...

6/30/2014 2:15 PM PDT BY TMZ STAFF
0630-jlo-rear-pcn-01Jennifer Lopez contorted her body into all sorts of positions this weekend ... rehearsing before her gig at the iHeartRadio Ultimate Pool Party in Miami.

What do all of J.Lo's dance moves have in common? Hmmm ...