Jennifer Lopez rocked a one-piece Michael Kors jumpsuit during American Idol ;ast night.  It had a deep V-neckline with sparkling embellished details throughout.  The figure-hugging look was enhanced by the ruching at the waistline.  A harem-styled hem made it fresh and new.  Her gold sandals matched the flecks in her outfit, and so did her bangles.  She opted for lots of volume in her hair, and her skin was radiant in a soft neutral color palette.