Jennifer Lopez stepped out in Paris wearing three very different looks ... all in one day!
![](https://images.toofab.com/image/ec/o/2010/04/26/ecac80c47bf650a69933cbdce7f2b2d6_md.jpg)
"The Back-up Plan" star was caught this morning in this white Paule Ka number -- before later raiding her closet for a black, skin tight ensemble and a flowy Bohemian frock.