Amanda Seyfried showed up to the premiere of her new film 'Lovelace' in Los Angeles last night in a shimmering Gucci halter dress that we're seriously obsessed with.

The beaded gold dress is one of the better ones we've seen on the red carpet this summer, and the star topped it all off with a glittery, smoky eye that managed to be sexy and sophisticated at the same time.

To see more of Amanda's looks, and for previous looks of the week, click through the gallery!