Jennifer Lopez's new single, "Dance Again" (Epic), reunites her with Pitbull and producer Red One in a nice bit of misdirection. She holds back for much of the song, with its airy chorus and moments where it seems ready to launch into a much broader anthem, but instead stays on a sleek, unpredictable line. Would it be better if it blossomed into "Waiting for Tonight" or even Crystal Waters' "Gypsy Woman" like it wants to? Maybe. Perhaps that's waiting on the remix.