Report: It's 'Pretty Serious' Between Jennifer Lopez & Casper Smart
"They're together a lot," the source says. "She's never been happier."
Smart is currently choreographing Mike Posner's new video, and a very special guest turned up on set. We're talking about JLo, of course.
"It was really nerve-wracking for the dancers," continued the insider. "They not only had to audition, but they had to do it in front of J Lo. She was smiling and seemed to enjoy watching her boyfriend work."
For more on Casper Smart, including the real story behind his apparent arrest, head over to E! Online.