Who is the Dress Designer for Christina Aguilera's ain't no other Man video?

The dress designer for Christina Aguilera's "Ain't No Other Man" video is Christian Lacroix. The video features a glamorous and vintage-inspired aesthetic that showcases Lacroix's signature bold colors and intricate designs. Aguilera's outfits throughout the video contribute significantly to its overall retro and luxurious vibe.