To costume designer Ellen Lutter — who worked on the 1998 disco-era flick “54,” about the nightclub — authenticity is beside the point in period movies such as “American Hustle ...

Her performance costumes were magical and perfectly embodied the ideal ‘70s wardrobe. Get your girlfriends to dress up too for a Dream Girls Halloween. Disco Diva Costume, $38, Walmart 15.

Considering fall 2021’s biggest fashion trends are full of major ‘70s fashion comebacks, you’ll probably have most of what you need for these costumes already in your closet.

The Party won’t stop when the band finish, we will be rocking the night away with a 70/80s themed Disco until late. We’d love to see you all out in your 70/80s gear!