The islanders from Love Island USA went all out with their Halloween outfits in 2021, and fans are eager to see what these cast members have pulled off. Last week, many islanders announced that they would be attending a new informal Love Island USA reunion in Scottsdale, Arizona. They have put together quite a few informal meetups since season 3 ended, but the intent behind this particular reunion was for them to celebrate Halloween together.

Going into Halloween weekend, many Love Island USA stars confirmed that they'd be attending the Scottsdale reunion. For instance, Cashay Proudfoot, Shannon St. Clair, Josh Goldstein, Olivia Kaiser, Korey Gandy, Kyra Lizama, Will Moncada, Trina Njoroge, Charlie Lynch, and Alana Paolucci all confirmed they'd be in attendance. Meanwhile, other former islanders from other seasons also celebrated Halloween in their respective cities despite not getting together with the season 3 cast members in Scottsdale.

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Amid so many recent relationship updates from Love Island USA stars, fans were eager to see which islanders would be celebrating Halloween with their co-stars. With that said, many islanders simply didn't attend the Halloween party in Scottsdale and chose to stay home instead. Of note, Cinco and Cash are still dating, but only Cash attended this latest reunion.

Shannon St. Clair & Josh Goldstein

Josh and Shannon referenced Justin Timberlake and Britney Spears' iconic denim-on-denim matching looks for Halloween. They looked great in denim, and this fashion reference is always hilarious. On a different occasion, Shannon dressed up as the Karen Smith character from Mean Girls.

Cashay Proudfoot

Speaking of iconic bunny outfits that left a big impression on Halloween in 2021, Cashay amazed Love Island fans with her "bunny baddie" outfit. Cash never fails to look beautiful and fierce, and this was yet another show-stopping look from the reality TV star.

Trina Njoroge

Trina also attended this Scottsdale reunion for Halloween. As expected, she looked gorgeous and powerful in her Medusa outfit. "Medusa for the night [snake emoji]," Trina wrote in the caption.

Kyra Lizama & Will Moncada

Kyra and Will truly went all out for the first Halloween they're spending together. The couple first dressed up as the characters of Mia Wallace (Uma Thurman) and Vincent Vega (John Travolta) from Pulp Fiction. Kyra then dressed up as the Mortal Kombat character Skarlet, and Will became Joe Exotic from the Tiger King docu-series.

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Justine Ndiba & Cely Vazquez

Despite not attending the Scottsdale reunion, Cely Vazquez and Justine Ndiba had a blast for Halloween as well. Alas, the BFFs had a more literal interpretation for their outfits: Cely dressed up as a demon and Justine dressed up as an angel.

Calvin Cobb

Calvin Cobb's Halloween outfit this year was referencing The Purge. The islander even wrote in his caption the standard purge message that has been featured in the films.

Johnny Middlebrooks

Johnny Middlebrooks also stayed in Los Angeles for Halloween, but that doesn't mean that the islander didn't celebrate the festivities. For his Halloween look, Johnny wore a skin-tight Spider-Man outfit.

Olivia Kaiser & Korey Gandy

There were obviously other islanders who also referenced superheroes with their Halloween costumes. Love Island USA winners Olivia and Korey dressed as the iconic DC Comics couple Harley Quinn and the Joker. Korey and Olivia are still reportedly dating, so this was a very cute look for them.

Bailey Marshall

After hearing so many times how much she looks like Gal Gadot, Bailey Marshall listened to her fans and gave them what they wanted: Bailey in a Wonder-Woman costume. She even took it one step further and tagged Gal Gadot's Instagram account in the caption.

Related: Love Island: Bailey Shares Dating Status, Talks Jeremy, Korey & Wes

Mackenzie Dipman

Mackenzie Dipman met up with the season 3 stars for Halloween. Her outfit was a reference to the character of Strawberry Shortcake. To be fair, however, Mack had a more adult take on this character.

Wes Ogsbury & K-Ci Maultsby

It was recently confirmed that Wes Ogsbury and Aimee Flores have broken up, so he is single and ready to mingle. For Halloween, Wes dressed up as a vampire and posed for a picture with co-star K-Ci Maultsby.

Alana Paolucci

Alana dressed up as an angel to attend this Halloween reunion between Love Island stars. As expected, Alana looked absolutely gorgeous in her costume.

Leslie Golden

Love Island USA dropout Leslie Golden had two main looks for Halloween 2021. She first dressed up as a provocative version of Daenerys Targaryen, also known as the Mother of Dragons on Game of Thrones. On a different occasion, Leslie dressed up as Harley Quinn.

Bennett Sipes

Season 2 star Bennett Sipes has recently been making headlines due to his relationship with Leslie Golden. For Halloween, however, Bennett and Leslie didn't have a couple's costume. Instead, he just dressed up as Buzz Lightyear from Toy Story.

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Aissata Diallo

Recent fans of Love Island USA might not be entirely familiar with season 1 star Aissata Diallo. However, the islander literally shut down Halloween this year with her jaw-dropping Catwoman costume. Aissata's outfit was a direct reference to Michelle Pfeiffer's version of the Catwoman for 1992's Batman Returns.

Florita Diaz

Florita Diaz's Halloween look was a very clever gender-bending version of Austin Powers, an iconic character created by comedian Mike Myers. She still looked pretty and feminine while wearing the signature visual cues of Austin Powers.

Genevieve Shawcross

Genevieve Shawcross also didn't attend the Scottsdale reunion. Recently, she's been actively distancing herself from Love Island USA. In any case, Genny looked pretty iconic wearing her Barbie-inspired bikini.

Elly Steffen

After becoming famous on Love Island for successfully convincing Charlie Lynch to mimic a cat in the villa, Elly Steffen took her iconic meme one step further. For Halloween, Elly wore a curvaceous "big cat energy" costume.

Moira Tumas

Season 2 star Moira Tumas dressed up as the character of Penny Lane (Kate Hudson) from the movie Almost Famous. As always, Moira looked absolutely fierce in her outfit.

Sher Suarez

It's pretty common for girls to reference well-known horror characters in more form-fitting outfits during Halloween. As such, Sher Suarez dressed up as a very revealing mummy when she went out to a party in Miami.

Mercades Danielle Schell

Last but not least, legendary Casa Amor star Mercades Danielle Schell dressed up as Mrs. Incredible for Halloween this year. Most Love Island USA fans will surely remember Mercades if they watched season 2.

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