Ms. Keri Baby was in Vegas doing it BIG. The blonde bombshell was looking Sasha Fierce sexy as she took the stage at Pure Nightclub at Caesars Palace. Performing some of her hits and drinking led to a serious hangover, since Keri took to twitter and mentioned “EVERY TIME I party in Vegas, I just want that memory-erasing thing from Men In Black the next day. That’s how you know you did Vegas right!” She also captioned an instagram photo saying, “I think Vegas means “regret” in Latin. No?” I say hey, you only live once. Drop down bottom and check out how the, “No Boys Allowed” singer was looking.