TV Exclusive: J.Lo & Pitbull 'Live it Up' in Miami Published 4:00 PM PDT, May 13, 2013 Jennifer Lopez hit the warm, white sand beaches of South Florida recently to film her new music video for Live it Up and only ET was invited to the top-secret set!Joined by her choreographer beau Casper Smart, the 43-year-old performer turned her video shoot into a party as she kicked off her third collaboration with chart-topper Pitbull.Pics--Star Sightings!"It was one of the more fun videos that I've ever done," said Lopez, who let her hair down and put her perfectly toned body on display for the fiery shoot. "We had such a good time."Click the video to see J.Lo in action, plus all the crazy on-set antics! The singer also drops a few hints as to who she may or may not be collaborating with for her new record.Video--ET Flashback '93: Jennifer LopezTune in to ET tomorrow for more on the set with Lopez as she and the entire cast and crew react to nearby gun shots, which temporary halted filming of Live it Up.