Jennifer Lopez had the rare honor of a total 'Saturday Night Live' takeover. Like Britney Spears and Taylor Swift in episodes past, J.Lo performed as the host and the musical guest on last night's 'SNL.' From her shockingly accurate Rihanna impression in the cold open to playing herself (frantically shouting in Spanish) in Kristen Wiig's recurring, awkward 'Hollywood Dish' interview segment, J. Lo let it all hang out -- but did it work? Watch the video