At the Los Angeles premiere of "Machete", actress Jessica Alba kisses goodbye to her girl-next-door image and adds some serious edge in a bold-shouldered metallic Balmain dress with fierce Christian Louboutin cut-out boots.

Style tip: What a cool look we have from Alba! Fashion is frivolous, so why stick to the same style season after season? Changing your look can be a refreshing switch. Take our quiz to see if it's your time for a makeover.