She's been all over the metropolitan Los Angeles area this week filming "The Back-Up Plan," and yesterday (June 18) Jennifer Lopez got to indulge her inner-clotheshorse.

The "Love Don't Cost a Thing" songstress looked to be having a good time on the Pasadena set as she meandered around the lot in between scenes.

And from the looks of it, J. Lo enjoyed multiple wardrobe changes throughout the day, a sign that she may have something in common with her character Zoe - a love for clothes!

Earlier this week, Ms. Lopez donned a pregnancy suit to film her scenes, harkening back to her own pregnancy last year during which she carried twins Max and Emme.

Enjoy the pictures of Jennifer Lopez on the set of "The Back-up Plan" (June 18).