Jennifer Lopez and Casper Smart's HALLOWEEN Costume 2012

Jennifer Lopez is on tour in Oberhausen, Germany but that didn't stop her from dressing up and celebrating HALLOWEEN! The songstress and her boyfriend Casper Smart donned matching hippie outfits.

Lopez even encouraged her fans on Twitter to attend her concert wearing a HALLOWEEN! costume saying, "#Happy Halloween! We have a show tonight in Oberhausen! Let's play dress up! Can't wait to see your costumes. #DanceAgainWorldTour2012."

More PHOTOS of Jennifer Lopez and Casper Smart's HALLOWEEN Costume:

Photos courtesy of Jennifer Lopez's Twitter account
Jennifer Lopez and Casper Smart's HALLOWEEN Costume 2012