If Mischa Barton is wearing it, then it must be in. That's right: 1960s mod style is making a major comeback— everything from go-go boots to oversize white sunglasses, thick headbands, and shift dresses like Mischa's from AKA New York, available at Intermix for $435.

Though her blue shift dress is only available in stores, you can buy a similar red-print version for $338 here.

To learn about the other essential pieces you need to create a fabulous mod look,

Privee Zipper Shift Dress, $288, available here in black or olive.

Oliver Peoples La Donna Sunglasses in White, $285, available here.

Chloe Patent Leather Snap Boots, $625, available here.

Nando Muzi Patent Leather Tall Boots, $498, available here in black or white hot patent leather.