Jennifer Lopez steals the show at the American Idol finalists party (Photos)

Jennifer Lopez must have dropped jaws when she arrived to the American Idol XIV Finalist Party held at The District in Los Angeles on Wednesday.

The 45-year-old entertainer swayed gazes her way thanks to that stunning, white, thigh-skimming Marchesa frock featuring a gold embroidered pattern from its mock turtleneck to the very short hem…