Style shrinks: Our experts analyse J-Lo's chic entrance to the 'American Idol' finalists' party

It takes Lopez's toned body and well-flexed confidence to pull this bandage dress off (Rex Features)

The hair

Rebecca Gonsalves: It may look low-maintenance but J-Lo isn't – especially not with those golden highlights.

Hugh Montgomery: An unyielding-looking bun: a rock bun, if you will.

The dress

Rebecca: The bandage dress has moved up a gear, and it takes Lopez's toned body and well-flexed confidence to pull this off with aplomb.

Hugh: It's good – but, as ever with J-Lo dresses from 2000 onwards, it's not the one with the palm trees. And that makes us sad.

The accessories

Rebecca: Jenny from the Block is nothing if not a fan of statement jewellery. The clean lines of these gold cuffs and bangles keep things modern.

Hugh: The real question this raises is: how has J-Lo not yet starred in a campy swords- and-sandals epic?

The shoes

Rebecca: Patent pumps add just the right hint of ladylike chic to balance the barely there-ness of the dress.

Hugh: She is at an 'American Idol' live party: of course, her shoes are gong to be S-H-I-N-Y.