If you’ve seen the 1977 classic Saturday Night Fever, you know that Tony and Stephanie fall madly in love while training for a local disco dance competition. But whether or not you’ve watched the film, you’re probably familiar with their ABBA-approved outfits.

Tony rocked white flair pants and a matching vest and jacket with a contrasting black button-down underneath, while Stephanie wore an off-the-shoulder red dress with a full skirt and matching peep-toe pumps. Note: If you and your boo dress up as these legendary characters, you’re kind of obligated to show off your enviable moves on the dance floor.

All you need is love — and some ‘70s-inspired garments — to become this famous rock couple.

John Lennon will need a white turtleneck, pants, and jacket, as well as his signature round spectacles. For Yoko Ono, round up a white turtleneck and mini skirt (or a mini dress), a white belt, and white knee-high boots. Then throw on a pair of oversized black sunnies and a white floppy hat. To pull the whole look together, one of you can carry around a sign that says "war is over." Be sure to flash those peace signs for any photo-ops, too.

You legit can’t go wrong with a generic hippie costume if you and bae are eager to capture the essence of the ‘70s. The best part? No one will be scratching their head over your costume. Plus, there are so many ways to bring this personalize these costumes and make them you own. Hunt around in some vintage stores to look for a few items from the ‘70s — those pieces are sure to add some authenticity to your groovy ensembles.

While there are many ways to pull off the hippie-chic look, think floral frocks or tunics with brown suede fringe vests, bell-bottom jeans, kaftans, maxi skirts, round sunnies, and ponchos. For some celeb inspiration, you can scope out photos from the 1970s of Janis Joplin, Joni Mitchell, Carly Simon, Mick Jagger, and Jimi Hendrix.

If you watch This Is Us, you’ll no doubt remember the episode in which Jack (Milo Ventimiglia) and Rebecca (Mandy Moore) dressed up as Sonny Bono and Cher for Halloween. Their take on the husband-and-wife rock duo involved a white suit with pink accents for Sonny and a matching pink and white halter-neck flaired jumpsuit for Cher. Naturally, Jack rocked a ‘stache and Sonny’s signature bowl cut, while Rebecca wore a long, dark brown straight wig and enormous silver hoop earrings.

There are other ways to embody this iconic couple, however. When Kim Kardashian and Jonathan Cheban dressed up as Sonny and Cher, he wore a burgundy tux with a bow tie, and she sported a matching yellow set that included a sheer, beaded long-sleeved crop-top, and wide-leg pants — along with gold hoop earrings and dramatic false lashes.

OK, so That ‘70s Show may have aired from 1998 to 2006, but it took place in the era you’re trying to capture, so that’s what matters. (Still over here eagerly awaiting that potential reboot, BTW.) There are several different routes you can go with this idea — like Eric and Donna or Jackie and Hyde. But it’s tough to beat Jackie and Kelso, especially given that Mila Kunis and Ashton Kutcher ended up together IRL #goals.

For Kelso, you’ll need a tight red polo or V-neck tee, bell-bottom jeans, and a brown side-swept shag wig. For Jackie, think peasant tops, high-waisted flare denim, and chunky wedges — and don’t forget her signature silk neck scarf. You can feather your hair by using a curling iron to flip it away from your face or simply buy a brunette ‘70s flip-wig.

When it comes to nostalgic cartoons, Scooby-Doo, which first ran from 1976 to 1978, might just take the cake. And since an animated movie starring Zac Efron and Amanda Seyfried is coming to theaters in May of 2020, it’s the perfect time to bring these characters back. Shaggy and Velma were BFFs (who occasionally shamelessly flirted with each other) in the same mystery solving group, and they had some undeniable chemistry.

Recreate Shaggy’s signature look with a green polo and brown bell-bottoms (ideally corduroy), and Velma’s look with an orange turtleneck sweater and matching knee-high socks, and a maroon pleated skirt and matching Mary Jane shoes. Don’t forget to snag a brunette bob wig and square-rim specs for Velma, too.

In the ‘70s, The Brady Bunch was the shining example of a blended family. And at the helm of that fam was “that lovely lady,” Carol, and “that man named Brady,” Mike. These TV characters are an ideal couples costume because they’re fairly simple to emulate.

The key is to get the right wigs: For Carol, a platinum blonde flip, and for Mike, a dark brown curly mop. As far as the outfits go, Carol could wear a yellow collared blouse with a floral vest and matching floral bell-bottoms cinched at the waist with a wide white belt, while Mike could wear a floral or polka-dot button-down, contrasting print tie, and plaid bell-bottom trousers.

All you and bae may need is a pinch of polyester and a bold floral print to go full ‘70s this Halloween, but remember: The ‘70s requires a certain attitude, not just a style. See you under the disco ball.