Jennifer Lopez announced her long-rumored pregnancy at a concert in Miami last night, thus giving her label, Sony, incentive to keep her around despite the massive amounts of money she made it lay out on her stiff of an album, at least until the holidays are over. After all, the major labels have enough PR problems at the moment–kicking an expectant mother to the curb and perhaps forcing her to use (gasp!) drugstore beauty products right before Christmas isn’t really the best way to scream “We care!”, now, is it. [People]