Sydney Sweeney switched up her signature look just in time for the red carpet! Sweeney, 28, stepped out at the Saturday, October 25, AFI Fest premiere of her movie Christy in a pastel pink, lace halter Miu Miu gown with a full skirt that was cinched at the waist by a matching belt. For glam, Sweeney wore her signature blonde tresses in a shorter and lighter bob. "Sydney was looking for a change and wanted to have a big hair moment for the red carpet to support her new movie, Christy," colorist Jacob Schwartz told Vogue of the hair transformation.